MCOLES Test study materials
MCOLES Test study resources

MCOLES Test key terms

MCOLES Test · Get comfortable with the vocabulary.

Mens rea

The guilty state of mind a person has when committing a crime, such as intending, knowing, or recklessly disregarding a risk. Prosecutors generally must prove it to obtain a conviction.

Related: Actus reus, Conspiracy
Actus reus

The physical act or unlawful failure to act that makes up a crime. It is the conduct element, separate from the person's mental state.

Related: Mens rea, Larceny
Larceny

The unlawful taking and carrying away of another person's personal property with the intent to permanently deprive the owner, accomplished without force or intimidation against the person.

Related: Home invasion, Actus reus
Home invasion

A Michigan offense for entering or remaining in another person's dwelling without permission, with aggravating factors such as being armed or intending harm, charged by degree.

Related: Larceny, Conspiracy
Self-defense

A justification for using force when a person reasonably believes it is necessary to prevent imminent unlawful harm to themselves or another, limited by rules on deadly force and retreat.

Related: Excessive force, Objective reasonableness
Conspiracy

An agreement between two or more people to commit a crime, often requiring an overt act, charged as a separate offense even when the planned crime is never completed.

Related: Mens rea, Actus reus
Probable cause

Facts and circumstances that would lead a reasonable officer to believe a crime has been, is being, or will be committed, or that evidence of a crime will be found in a specific place.

Related: Reasonable suspicion, Exclusionary rule
Reasonable suspicion

A standard lower than probable cause that requires specific, articulable facts suggesting criminal activity, enough to justify a brief investigative stop but not a full arrest.

Related: Terry stop, Probable cause
Terry stop

A brief investigative detention based on reasonable suspicion during which an officer may pat down outer clothing for weapons; its scope and duration must stay tied to the suspicion that prompted it.

Related: Reasonable suspicion, Probable cause
Exclusionary rule

The principle that evidence obtained through unconstitutional police conduct is usually inadmissible in court, deterring violations, subject to exceptions such as good faith and inevitable discovery.

Related: Probable cause, Miranda warnings
Miranda warnings

Advance notice given to a suspect in custody that he may remain silent, that anything said may be used against him, and that he may have an attorney present.

Related: Custodial interrogation, Juvenile waiver of rights
Custodial interrogation

Questioning by police after a person has been taken into custody or otherwise deprived of freedom in a significant way, which requires Miranda warnings before questioning begins.

Related: Miranda warnings, Juvenile waiver of rights
Exigent circumstances

Urgent conditions such as hot pursuit, imminent destruction of evidence, danger to life, or a fleeing suspect that justify a warrantless entry or search.

Related: Probable cause, Plain view doctrine
Plain view doctrine

Permits an officer who is lawfully present to seize items whose incriminating character is immediately apparent, without needing a separate warrant for that seizure.

Related: Exigent circumstances, Probable cause
Reactionary gap

The distance an officer keeps from a person, often around six to ten feet, to allow enough time and space to respond to a sudden attack.

Related: Cover and concealment, Officer-created jeopardy
Cover and concealment

Cover is material that stops bullets, such as an engine block or brick wall; concealment only hides a person from view, such as bushes, and offers no ballistic protection.

Related: Reactionary gap, High-risk vehicle stop
Contact and cover

A two-officer tactic in which the contact officer handles communication and investigation while the cover officer watches for threats and controls the scene.

Related: High-risk vehicle stop, Cover and concealment
High-risk vehicle stop

A felony stop using several officers, drawn weapons, and loud verbal commands to safely remove and control the occupants of a vehicle suspected in a violent crime.

Related: Contact and cover, Reactionary gap
Officer-created jeopardy

Danger created by officers' own tactical decisions, such as poor positioning or unnecessary pursuit, rather than by the suspect's conduct alone.

Related: Reactionary gap, Excessive force
Chain of custody

The documented, unbroken record of who handled evidence, when, and how, from collection through trial, used to show it has not been altered or substituted.

Related: Showup, Hearsay
Corpus delicti

The rule that the prosecution must prove a crime actually occurred through evidence independent of the defendant's own confession before that confession can be used.

Related: Hearsay, Chain of custody
Hearsay

An out-of-court statement offered at trial to prove the truth of what it asserts; it is generally inadmissible unless a recognized exception applies.

Related: Excited utterance, Corpus delicti
Excited utterance

A hearsay exception allowing statements about a startling event made while the speaker is still under the stress or excitement caused by that event.

Related: Hearsay
Showup

A one-person identification procedure held soon after a crime, allowed only when necessary and conducted so the witness is not led to believe the suspect is guilty.

Related: Reasonable suspicion, Chain of custody
Pretext stop

A traffic stop that is legally justified by an observed violation but actually motivated by a wish to investigate something else; it is valid if the violation itself supports the stop.

Related: Reasonable suspicion, Probable cause
Implied consent

The legal theory that drivers, by using public roads, agree in advance to chemical testing after a lawful impaired-driving arrest, with penalties for refusal.

Related: Field sobriety tests
Field sobriety tests

Standardized divided-attention and coordination exercises, such as the walk-and-turn and one-leg stand, used with other observations to decide whether a driver is impaired.

Related: Implied consent, Probable cause
Careless driving

Operating a vehicle without due care and caution, or in a way that endangers people or property, which is a civil infraction in Michigan rather than a crime.

Related: Pretext stop
Status offense

Conduct that is unlawful only because the person is a minor, such as truancy, curfew violations, or running away, usually handled outside the criminal justice system.

Related: Delinquency, Parental notification
Delinquency

A juvenile court finding that a minor committed an act that would be a crime if done by an adult, handled with a focus on rehabilitation rather than punishment.

Related: Status offense, Juvenile waiver of rights
Juvenile waiver of rights

The test of whether a minor understood and voluntarily gave up Miranda rights, weighed by age, education, prior experience, and whether a parent was present.

Related: Miranda warnings, Parental notification
Parental notification

The requirement that a parent or guardian be told when a minor is taken into custody or questioned, which affects whether a juvenile's statements are later admitted.

Related: Juvenile waiver of rights, Status offense
Color of law

The requirement that a civil rights claim involve someone using authority given by government, such as an on-duty officer acting under state power.

Related: Section 1983, Qualified immunity
Excessive force

Force beyond what a reasonable officer would use under the circumstances, judged from the perspective of the moment rather than with hindsight.

Related: Objective reasonableness, Qualified immunity
Section 1983

A federal statute letting people sue government officials who, acting under color of law, deprive them of rights secured by the Constitution or federal law.

Related: Color of law, Qualified immunity
Qualified immunity

A doctrine that shields officers from civil damages unless their conduct violated clearly established law that a reasonable officer would have known.

Related: Section 1983, Color of law
Garrity rights

Protection that statements compelled from a public employee under threat of discipline cannot later be used against that employee in a criminal prosecution.

Related: Miranda warnings, Bias-free policing
Brady material

Evidence favorable to the accused that is material to guilt or punishment, which the prosecution must disclose; officers must pass such information along.

Related: Chain of custody, Hearsay
Objective reasonableness

The force standard asking whether an officer's actions were reasonable given the facts known at the time, without hindsight and weighing the severity of the crime, threat, and resistance.

Related: Excessive force, Self-defense
Bias-free policing

The practice of making enforcement decisions based on behavior and evidence rather than race, ethnicity, religion, gender, or other protected characteristics, supported by documented, articulable reasons.

Related: Color of law, Section 1983