Criminal Procedure

Bar Exam Significance: Criminal Procedure is one of the most heavily tested subjects on the California Bar Exam, appearing regularly on essay questions (often cross-listed with Criminal Law and Evidence) and comprising a significant portion of the MBE. The subject centers on constitutional protections found in the 4th, 5th, 6th, and 14th Amendments. California distinctions under Proposition 8 and independent state constitutional grounds are critical for full-credit answers.

Overview & Framework

Criminal Procedure governs the process by which the government investigates, prosecutes, and punishes crime. The field is dominated by constitutional rights applied to the states through the 14th Amendment's Due Process Clause. On the bar exam, the analysis typically follows the chronological flow of a criminal case: investigation (search & seizure, interrogation, identification), pretrial proceedings, trial rights, and post-trial matters.

Master Framework — The Chronological Approach: When you see a Criminal Procedure essay, organize your answer chronologically: (1) Was there a valid search/seizure? (2) Were any statements properly obtained? (3) Were identification procedures fair? (4) Were pretrial rights honored? (5) Were trial rights satisfied? (6) Are post-trial remedies available? Within each stage, apply the constitutional amendment at issue.

Mnemonic: "SIMPLE" — The Six Major Crim Pro Topics

  • S — Search & Seizure (4th Amendment)
  • I — Interrogation / Miranda (5th Amendment)
  • M — Massiah / Right to Counsel (6th Amendment)
  • P — Pretrial Procedures (bail, grand jury, arraignment)
  • L — Lineup & Identification Procedures
  • E — Exclusionary Rule & Remedies

I. The Fourth Amendment — Search & Seizure

Text: "The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized."

A. Threshold Questions: Is It a "Search"? Is It a "Seizure"?

1. Reasonable Expectation of Privacy (REP) — Katz v. United States (1967)

A "search" occurs when the government violates a person's reasonable expectation of privacy (REP). The two-part Katz test requires:

Alternative: Trespass Theory — United States v. Jones (2012): A search also occurs when the government physically intrudes on a constitutionally protected area (persons, houses, papers, effects) to obtain information.

REP EXISTS (Protected):

NO REP (Not Protected — Third-Party / Open Fields Doctrines):

Watch Out — Carpenter Limitation: The Supreme Court carved out CSLI (historical cell-site location information) from the third-party doctrine. Acquiring 7+ days of CSLI is a search requiring a warrant. Future cases may further erode the third-party doctrine for digital records. On the bar, note the tension when digital surveillance is at issue.

2. "Seizure" of a Person

A person is "seized" when, in view of all circumstances, a reasonable person would not feel free to leave or to terminate the encounter. (United States v. Mendenhall; Florida v. Bostick)

3. Standing

To challenge a search or seizure, the defendant must have standing — i.e., the defendant's own 4th Amendment rights must have been violated. A defendant cannot vicariously assert another person's 4th Amendment rights. (Rakas v. Illinois)

B. The Warrant Requirement

Searches and seizures conducted without a valid warrant are presumptively unreasonable. The government bears the burden of showing an exception applies.

Valid Warrant Requirements:

Informant Tips & Probable Cause: Under Illinois v. Gates, courts use the totality of the circumstances test to evaluate whether an informant's tip establishes probable cause. Relevant factors: basis of knowledge, veracity/reliability, corroboration by police. The old Aguilar-Spinelli two-prong test (basis of knowledge + veracity) is no longer the federal standard but may still appear in some state analyses.

C. Exceptions to the Warrant Requirement

Mnemonic: "SPACESHIP" — Warrant Exceptions

  • S — Search Incident to Lawful Arrest
  • P — Plain View
  • A — Automobile Exception
  • C — Consent
  • E — Exigent Circumstances / Hot Pursuit
  • S — Stop & Frisk (Terry)
  • H — Hot Pursuit (overlaps with Exigent)
  • I — Inventory Searches
  • P — Special Needs / Administrative / Border

1. Search Incident to Lawful Arrest (SILA)

Rule — Chimel v. California: Upon a lawful custodial arrest, officers may search (a) the arrestee's person and (b) the area within the arrestee's immediate control (the "wingspan" or "lunge area") for weapons and evidence.

2. Plain View Doctrine

Rule — Horton v. California: An officer may seize evidence in plain view if: (1) the officer is lawfully present at the vantage point; (2) the incriminating character of the item is immediately apparent (probable cause to believe it is contraband/evidence); and (3) the officer has a lawful right of access to the object.

3. Automobile Exception

Rule — Carroll v. United States: If police have probable cause to believe a vehicle contains evidence of a crime or contraband, they may search the vehicle without a warrant — including all containers within the vehicle that could hold the item sought.

4. Consent

Rule: A warrantless search is valid if a person with authority voluntarily consents. Consent must be given freely and voluntarily under the totality of the circumstances. (Schneckloth v. Bustamonte)

5. Terry Stop & Frisk

Rule — Terry v. Ohio (1968): An officer who has reasonable suspicion (articulable facts suggesting criminal activity) may briefly detain a person for investigation. If the officer reasonably believes the person is armed and dangerous, the officer may conduct a limited pat-down of outer clothing for weapons.
ElementStop (Investigatory Detention)Frisk (Pat-Down)
StandardReasonable suspicion of criminal activityReasonable belief person is armed & dangerous
ScopeBrief detention; ask questions, request IDPat-down of outer clothing for weapons only
DurationMust be reasonably brief; no hard time limitLimited to weapons check
Key CasesTerry; Illinois v. Wardlow (flight in high-crime area)Terry; Minnesota v. Dickerson (plain feel)

6. Exigent Circumstances & Hot Pursuit

Rule: Police may make a warrantless entry into a home (or other protected area) when they have probable cause plus exigent circumstances that make obtaining a warrant impractical.

Recognized exigent circumstances include:

7. Inventory Searches

Rule: Police may conduct a warrantless inventory search of a lawfully impounded vehicle (or a lawfully arrested person's belongings upon booking) if conducted pursuant to standardized department procedures. (South Dakota v. Opperman; Colorado v. Bertine)

8. Border Searches & Special Needs / Administrative Searches

Border Searches:

Special Needs / Administrative Searches:

II. The Exclusionary Rule

Rule — Mapp v. Ohio (1961): Evidence obtained through an unconstitutional search or seizure is inadmissible in the prosecution's case-in-chief. This is a judicially created remedy designed to deter police misconduct; it is not a personal constitutional right.

A. Fruit of the Poisonous Tree

The exclusionary rule extends not only to evidence directly obtained through the illegal action (the "primary evidence") but also to all evidence derived from the illegality — the "fruit of the poisonous tree." (Wong Sun v. United States)

B. Exceptions to the Exclusionary Rule

Mnemonic: "GAIA" — Exclusionary Rule Exceptions

  • G — Good Faith (Leon)
  • A — Attenuation
  • I — Independent Source
  • A — (Inevitable) Discovery
ExceptionRuleKey Case
Independent Source Evidence obtained from a source wholly independent of the illegal conduct is admissible. Segura v. United States; Murray v. United States
Inevitable Discovery Evidence is admissible if the prosecution proves by a preponderance that the evidence would inevitably have been discovered through lawful means. Nix v. Williams
Attenuation Evidence is admissible if the connection between the illegal conduct and the discovery of evidence is so remote or attenuated as to purge the taint. Factors: (1) temporal proximity, (2) intervening circumstances, (3) purpose and flagrancy of the misconduct. Wong Sun; Utah v. Strieff (2016) — discovery of outstanding warrant during illegal stop attenuated the taint.
Good Faith Evidence obtained by officers who reasonably relied on a facially valid warrant later found to lack probable cause is admissible. Rationale: excluding evidence would not deter judicial (not police) errors. United States v. Leon (1984)

Good Faith Exception — Applications & Limits:

Good faith does NOT apply when:

C. Scope & Limitations of the Exclusionary Rule

California Distinction — Proposition 8 ("Truth-in-Evidence"): California's Proposition 8 (Cal. Const. Art. I, §28(f)(2)) provides that "relevant evidence shall not be excluded in any criminal proceeding." This effectively abolishes independent state exclusionary protections and limits California to the federal constitutional minimum under the 4th Amendment. Before Prop. 8, California had broader exclusionary protections (e.g., Brisendine requiring Miranda-like warnings for consent searches). After Prop. 8, California follows federal exclusionary rule standards. Exception: Prop. 8 does not apply to privilege (attorney-client, etc.) or to specific statutory protections.

III. The Fifth Amendment — Self-Incrimination & Miranda

A. Miranda Warnings & Waiver

Rule — Miranda v. Arizona (1966): Before custodial interrogation, officers must inform the suspect of: (1) the right to remain silent; (2) that anything said can be used in court; (3) the right to an attorney; and (4) the right to appointed counsel if indigent. A suspect may waive these rights only if the waiver is knowing, intelligent, and voluntary.

1. "Custody" — Would a Reasonable Person Feel Free to Leave?

The test is objective: would a reasonable person in the suspect's position feel they were in custody (i.e., deprived of freedom in a significant way)? (Thompson v. Keohane)

2. "Interrogation" — Express Questioning or Its Functional Equivalent

Interrogation includes express questioning AND any words or actions by police that are reasonably likely to elicit an incriminating response. (Rhode Island v. Innis)

3. Waiver of Miranda Rights

4. Invocation of Rights

Right InvokedStandardPolice ObligationsResumption
Right to Silence Must be unambiguous (Berghuis v. Thompkins) Must "scrupulously honor" — stop questioning Police may re-approach after a significant time has passed, re-Mirandize, and question about a different crime. (Michigan v. Mosley)
Right to Counsel Must be unambiguous and unequivocal (Davis v. United States — "Maybe I should talk to a lawyer" is insufficient) Must immediately cease all interrogation Police may NOT reinitiate questioning about any crime until counsel is provided or the suspect reinitiates communication. (Edwards v. Arizona) After 14-day break in custody, police may re-approach. (Maryland v. Shatzer, 2010)
Critical Distinction — Invoking Silence vs. Counsel: Invoking the right to silence is crime-specific and allows re-approach after a cooling-off period on a different crime. Invoking the right to counsel is broader — it bars ALL interrogation on ANY topic unless counsel is present or the suspect reinitiates. This is a favorite bar exam testing point.

5. Exceptions to Miranda

6. Remedy for Miranda Violations

B. The Privilege Against Self-Incrimination

Rule: The 5th Amendment provides that no person "shall be compelled in any criminal case to be a witness against himself." This protects against compelled testimonial or communicative evidence, not physical evidence.

C. Double Jeopardy

Rule: The 5th Amendment provides that no person shall "be subject for the same offence to be twice put in jeopardy of life or limb." This protects against: (1) a second prosecution for the same offense after acquittal; (2) a second prosecution for the same offense after conviction; and (3) multiple punishments for the same offense in a single trial (beyond legislative intent).

1. When Jeopardy Attaches

2. "Same Offense" — The Blockburger Test

Rule — Blockburger v. United States (1932): Two offenses are the "same offense" for double jeopardy purposes unless each offense requires proof of an element that the other does not. If each requires a unique element, they are different offenses and separate prosecutions/punishments are permitted.

3. Exceptions / When Retrial Is Permitted

California Distinction — Kellett Rule: California's Kellett v. Superior Court (1966) goes beyond federal double jeopardy by requiring that the prosecution bring all charges arising from the same act or course of conduct in a single proceeding. Failure to do so may bar subsequent prosecution even if the offenses are different under Blockburger. This is a compulsory joinder rule unique to California.

IV. The Sixth Amendment

A. Right to Counsel

Rule: The 6th Amendment guarantees the right to counsel in all criminal prosecutions. This right attaches at the initiation of adversary judicial proceedings (formal charge, indictment, information, arraignment, preliminary hearing). (Rothgery v. Gillespie County; Kirby v. Illinois)

6th Amendment Right to Counsel vs. Miranda (5th Amendment) Right to Counsel

Feature5th Amendment (Miranda)6th Amendment (Massiah)
When attachesCustodial interrogationInitiation of adversary judicial proceedings
Offense scopeNot offense-specific — bars questioning on any topic after invocation (Edwards)Offense-specific — only bars questioning on the charged offense. (McNeil v. Wisconsin; Texas v. Cobb)
Trigger for violationCustodial interrogation without warnings or after invocationDeliberate elicitation of statements about charged offense without counsel. (Massiah v. United States; Brewer v. Williams)
Undercover agentsNo violation — no coercive atmosphere (Perkins)Violation if agent deliberately elicits statements about charged offense. (United States v. Henry; Kuhlmann v. Wilson — passive "listening post" OK, but active elicitation violates.)
WaiverKnowing, voluntary, intelligentKnowing, voluntary, intelligent — but police-initiated interrogation after invocation is invalid unless counsel present. (Michigan v. Jackson — NOTE: overruled by Montejo v. Louisiana — police may approach 6th Amendment defendant who has not affirmatively requested counsel.)
Key Testing Point — Offense-Specific Nature of 6th Amendment: The 6th Amendment right to counsel is offense-specific. If D is charged with robbery and police question D about an uncharged murder (without counsel), the 6th Amendment is not violated (though Miranda still applies if D is in custody). "Offense" is construed narrowly — offenses must be the same under Blockburger. (Texas v. Cobb)

Effective Assistance of Counsel — Strickland v. Washington

B. Right to Jury Trial

C. Right to Speedy Trial

Rule — Barker v. Wingo (1972): Courts use a four-factor balancing test: (1) length of delay (threshold trigger — must be "presumptively prejudicial"); (2) reason for the delay (deliberate delay by prosecution weighs heavily; negligence weighs less; valid reasons like missing witnesses weigh for government); (3) defendant's assertion of the right; (4) prejudice to the defendant (impaired defense, oppressive pretrial incarceration, anxiety).

D. Confrontation Clause — Crawford v. Washington

Rule — Crawford v. Washington (2004): The Confrontation Clause bars admission of testimonial statements by a declarant who does not testify at trial, unless the declarant is unavailable and the defendant had a prior opportunity to cross-examine.

What Is "Testimonial"?

Confrontation Clause vs. Hearsay Rules — What's the Difference?

The Confrontation Clause is a constitutional limitation on the use of out-of-court statements, while hearsay rules are evidentiary rules. Even if a statement falls within a hearsay exception (e.g., dying declaration, excited utterance), it may still be barred by the Confrontation Clause if it is testimonial and the declarant is unavailable without prior opportunity for cross-examination. However, the Supreme Court has hinted that dying declarations may be a historical exception to the Confrontation Clause. Non-testimonial statements are governed solely by hearsay rules, not by Crawford.

V. Identification Procedures

A. Types of Identification Procedures

ProcedureDescriptionConstitutional Protections
Lineup Suspect placed among similar-looking individuals for witness to identify 6th Amendment right to counsel (post-charge only); Due Process
Showup One-on-one presentation of suspect to witness (often at crime scene shortly after crime) Due Process (inherently suggestive but not per se impermissible)
Photo Array Witness views photographs to identify suspect Due Process only (NO right to counsel — United States v. Ash)

B. Sixth Amendment Right to Counsel at Identifications

C. Due Process Challenge — Manson v. Brathwaite

Rule: An identification procedure violates due process if it is (1) unnecessarily suggestive AND (2) creates a substantial likelihood of irreparable misidentification, considering the totality of the circumstances.

Reliability factors (from Neil v. Biggers/Manson v. Brathwaite):

Exam Tip: Even if an out-of-court identification is suppressed, the witness may still make an in-court identification if it has an independent basis apart from the tainted procedure (e.g., the witness observed the suspect for a long time at close range during the crime). (United States v. Wade)

VI. Pretrial Procedures

A. Bail

B. Grand Jury

California Distinction: California uses BOTH grand jury indictments and preliminary hearings. Most felony prosecutions proceed by preliminary hearing and information, but prosecutors have the option of seeking a grand jury indictment. California grand juries operate under somewhat different rules than federal grand juries.

C. Preliminary Hearing

D. Arraignment

E. Prosecutorial Duty to Disclose — Brady v. Maryland

Rule — Brady v. Maryland (1963): The prosecution must disclose material exculpatory evidence to the defense. Evidence is "material" if there is a reasonable probability that disclosure would have changed the outcome of the proceeding. This includes impeachment evidence. (Giglio v. United States)

VII. Trial Rights

A. Right to a Public Trial

B. Right to Compulsory Process

C. Due Process Rights at Trial

VIII. Guilty Pleas

Rule — Boykin v. Alabama (1969): A guilty plea must be knowing, intelligent, and voluntary. The record must show the defendant was informed of and understood the rights being waived: (1) right to jury trial; (2) right to confront witnesses; (3) privilege against self-incrimination.

IX. Sentencing

X. Appeals & Habeas Corpus

A. Appeals

B. Habeas Corpus

XI. California-Specific Distinctions

Why CA Distinctions Matter: On the California Bar Exam essay portion, you MUST address California-specific rules whenever they differ from federal law. The graders expect this analysis. Below is a consolidated list of key California distinctions in criminal procedure.
IssueFederal RuleCalifornia Rule
Exclusionary Rule Federal minimum protections; good faith exception applies (Leon) Proposition 8 — CA follows federal minimum. Pre-Prop 8 broader state protections largely eliminated. Good faith exception applies. (In re Lance W.)
Automobile Search Probable cause to search vehicle, including containers Same as federal after Prop 8. Previously, CA was stricter.
Electronic Surveillance One-party consent — one party to conversation may consent to recording Two-party consent — Cal. Penal Code §632: ALL parties must consent to recording of confidential communications. (CA is a "two-party consent" state.) Violations may lead to exclusion under state law (not Prop 8 issue but statutory).
Grand Jury Required for federal felonies (5th Amendment) Not required; most cases proceed by preliminary hearing + information. Grand jury available as an alternative.
Compulsory Joinder No compulsory joinder rule beyond double jeopardy Kellett rule: Must join all charges arising from same act/course of conduct. Failure bars later prosecution.
Independent State Grounds N/A CA courts may interpret the CA Constitution to provide greater protections than the federal Constitution, but Prop 8 limits this in the exclusionary rule context. Independent state grounds remain viable in areas not covered by Prop 8 (e.g., right to privacy under Art. I, §1).
Right to Counsel Strickland standard for ineffective assistance Same standard, but CA applies People v. Ledesma (similar to Strickland). CA Constitution Art. I, §15 independently guarantees right to counsel.
Speedy Trial Barker v. Wingo balancing test; Speedy Trial Act (70 days) Cal. Penal Code §1382: Felony — 60 days from arraignment on information/indictment. Misdemeanor — 30 (in custody) or 45 (out of custody) days. Remedy: dismissal (may be refiled if statute of limitations has not run).
Jury Size 12-person federal jury; minimum 6 for states 12-person jury required for felonies; misdemeanors may use 12 or fewer. Unanimous verdict required. (Cal. Const. Art. I, §16)
Death Penalty Permitted with adequate procedural safeguards CA has death penalty statute but execution has been subject to moratorium. Proposition 66 (2016) sought to expedite. Governor's moratorium (2019-present). The procedural requirements remain testable.
Proposition 8 — Deep Dive

What it does: Cal. Const. Art. I, §28(f)(2) provides: "Except as provided by statute hereafter enacted by a two-thirds vote of the membership in each house of the Legislature, relevant evidence shall not be excluded in any criminal proceeding." This effectively means that California courts cannot use the state constitution to create exclusionary protections broader than those required by the federal Constitution.

What it does NOT do: Prop 8 does not affect: (1) statutory privileges (attorney-client, physician-patient, etc.); (2) evidence code provisions enacted by two-thirds legislative vote; (3) constitutional rights that do not involve the exclusionary rule (e.g., the right to privacy for non-exclusionary purposes); (4) protections that are co-extensive with federal protections.

Practical effect on essays: When analyzing a search and seizure issue on a CA bar essay, apply federal 4th Amendment standards. If the search/seizure is valid under federal law, it is valid under California law (post-Prop 8). If the search/seizure violates the federal 4th Amendment, the evidence is excluded under both federal and California law. There is generally no separate California analysis that would produce a different result for exclusionary rule purposes.

Common Essay Patterns

How Criminal Procedure Appears on the Bar: Crim Pro essays frequently combine multiple constitutional amendments in a single fact pattern. A typical essay might involve: a stop and frisk, leading to an arrest, leading to a search incident to arrest, leading to an interrogation at the station. You must analyze each stage separately under the applicable amendment.

Pattern 1: The Multi-Stage Investigation

Setup: Police receive a tip, conduct surveillance, perform a traffic stop, discover evidence, arrest the suspect, search the car and cell phone, and interrogate at the station.

Issues to address:

Pattern 2: Home Entry & Consent Issues

Setup: Police go to suspect's home, obtain consent from a roommate, search the house, find evidence, arrest the suspect, and question them.

Issues to address:

Pattern 3: Identification & Right to Counsel

Setup: Witness views a showup or lineup; defendant is charged; police later question defendant without counsel about the charged offense and an uncharged offense.

Issues to address:

Pattern 4: Double Jeopardy & Guilty Pleas

Setup: Defendant is prosecuted, enters a plea or goes to trial, then faces a second prosecution for a related offense.

Issues to address:

Pattern 5: Trial Rights & Post-Trial

Setup: Errors occur at trial (Confrontation Clause violations, jury selection issues, sentencing enhancements), and defendant seeks appellate or habeas relief.

Issues to address:

Issue-Spotting Checklist

Exam Tips

Tip 1: Follow the Chronology. Organize your essay answer in the order events occurred: investigation, arrest, interrogation, identification, pretrial, trial, post-trial. This ensures you catch every issue and provides a logical structure graders expect.
Tip 2: Always State the Standard. For every constitutional issue, explicitly state the standard. "Under the 4th Amendment, a search occurs when..." "Miranda warnings are required when there is custodial interrogation, meaning..." This earns points even if your application is imperfect.
Tip 3: Distinguish 5th vs. 6th Amendment Counsel. This is a perennial bar favorite. Always address BOTH when counsel issues arise. Note the different triggers (custody vs. charging), different scopes (all crimes vs. offense-specific), and different rules for undercover agents.
Tip 4: Address the Exclusionary Rule for EVERY Violation. After finding a constitutional violation, discuss the remedy. State the exclusionary rule, discuss fruit of the poisonous tree, and analyze whether any exception applies (good faith, attenuation, inevitable discovery, independent source). Also note where the rule does NOT apply (grand jury, impeachment, etc.).
Tip 5: Do Not Forget California. On essay questions, after completing the federal analysis, add a California section. At minimum, note: (1) Prop 8 means CA follows federal exclusionary rule standards; (2) Kellett compulsory joinder; (3) CA speedy trial rules (PC §1382); (4) two-party consent for recordings. Even a brief mention earns points.
Tip 6: Standing First. Before analyzing whether a search was unconstitutional, confirm the defendant has standing. If D is challenging a search of someone else's property and lacks a sufficient connection (overnight guest, etc.), the analysis may end there.
Tip 7: MBE Strategy. On MBE questions, pay close attention to: (a) whether the question asks what the court "should" do vs. what the "best argument" is; (b) whether the issue is standing, the constitutional violation itself, or the remedy; (c) the distinction between "reasonable suspicion" and "probable cause" standards. Many wrong answers use the correct rule but the wrong standard of proof.

Mnemonics & Memory Aids

"SPACESHIP" — Warrant Exceptions

Search incident to arrest, Plain view, Automobile, Consent, Exigent circumstances, Stop & frisk, Hot pursuit, Inventory, sPecial needs/border/admin

"GAIA" — Exclusionary Rule Exceptions

Good faith, Attenuation, Independent source, inevitAble discovery

"MIC" — Miranda Triggers

Miranda applies when there is: a Interrogation (or functional equivalent) during Custody.

"LOAD" — Barker v. Wingo Speedy Trial Factors

Length of delay, rOeason for delay, defendant's Assertion of right, Defendant's prejudice

"OCADT" — Manson v. Brathwaite Identification Reliability

Opportunity to view, degree of Certainty, Accuracy of prior description, level of Degree of attention, Time between crime and confrontation

"DP" — Strickland Ineffective Assistance

Deficient performance + Prejudice (reasonable probability of different result)

Key Distinctions

Concept AConcept BKey Difference
Reasonable Suspicion Probable Cause RS = specific articulable facts suggesting criminal activity (lower standard, for stops/frisks). PC = fair probability of crime/evidence (higher standard, for arrests/warrants/auto exception).
Stop (Terry) Arrest Stop = brief, temporary, limited scope (RS required). Arrest = full custodial restraint (PC required).
Search Incident to Arrest (vehicle) Automobile Exception SILA (Gant) = limited to reaching distance OR evidence of crime of arrest. Auto exception (Carroll) = PC for any contraband/evidence, search entire vehicle.
5th Amend. Counsel (Miranda) 6th Amend. Counsel (Massiah) 5th = triggered by custody + interrogation, not offense-specific after invocation. 6th = triggered by charging, offense-specific, bars deliberate elicitation including by undercover agents.
Invoke Right to Silence Invoke Right to Counsel Silence = police may re-approach after cooling off, different crime (Mosley). Counsel = ALL questioning must stop on ALL crimes until counsel provided or suspect reinitiates (Edwards).
Elstad (inadvertent) Seibert (deliberate) Inadvertent Miranda failure: subsequent warned statement admissible. Deliberate two-step: subsequent warned statement suppressed unless curative measures taken.
Testimonial (Crawford) Non-Testimonial Testimonial = primarily to prove past events for prosecution (barred without cross-exam). Non-testimonial = ongoing emergency, business records, casual statements (governed by hearsay rules only).
Harmless Error Structural Error Harmless = constitutional error that did not contribute to verdict (proven beyond reasonable doubt). Structural = per se reversible (denial of counsel, biased judge, public trial denial).
Double Jeopardy (Blockburger) CA Kellett Rule Blockburger = same offense if each does not require unique element. Kellett = broader; bars separate prosecution of different offenses from same act/course of conduct.
Actual Authority (Consent) Apparent Authority (Consent) Actual = person genuinely has common authority over property. Apparent = officer reasonably (but mistakenly) believes person has authority. Both validate consent.
Randolph (present, objecting) Fernandez (removed, then consent) If physically present co-tenant objects, consent of other is invalid. If objector is lawfully removed (arrested), remaining co-tenant can validly consent.