NC State Trooper study materials
NC State Trooper study resources

NC State Trooper key terms

NC State Trooper · Get comfortable with the vocabulary.

Reasonable Suspicion

A specific, articulable set of facts that would lead an officer to believe criminal activity is afoot, justifying a brief investigative stop short of arrest.

Related: Terry Stop, Probable Cause
Probable Cause

Facts and circumstances that would convince a reasonable person that a crime has been committed and that a particular person committed it, supporting arrest or a warrant.

Related: Reasonable Suspicion, Arrest Warrant
Terry Stop

A brief detention based on reasonable suspicion during which an officer may investigate and, if warranted, pat down the outer clothing for weapons.

Related: Reasonable Suspicion, Frisk
Frisk

A limited pat-down of outer clothing for weapons, permitted when an officer reasonably believes a detained person is armed and dangerous.

Related: Terry Stop, Reasonable Suspicion
Miranda Warning

Advice given before custodial interrogation informing a suspect of the rights to remain silent, to counsel, and to have counsel appointed if indigent.

Related: Custodial Interrogation, Waiver of Rights
Custodial Interrogation

Questioning by law enforcement after a person has been taken into custody or otherwise deprived of freedom in a significant way, triggering Miranda requirements.

Related: Miranda Warning, Waiver of Rights
Waiver of Rights

A knowing, voluntary, and intelligent relinquishment of a constitutional right, such as the right to silence or counsel, made after proper advisement.

Related: Miranda Warning, Custodial Interrogation
Arrest Warrant

A judicial order authorizing officers to take a named person into custody, issued upon a showing of probable cause supported by oath or affidavit.

Related: Probable Cause, Search Warrant
Search Warrant

A court order authorizing officers to search a specified place and seize specified items, based on probable cause and particularized in scope.

Related: Arrest Warrant, Exigent Circumstances
Exigent Circumstances

Urgent conditions such as imminent danger, hot pursuit, or likely destruction of evidence that excuse obtaining a warrant before acting.

Related: Search Warrant, Plain View Doctrine
Plain View Doctrine

The rule allowing an officer lawfully present to seize evidence of a crime or contraband that is immediately apparent without additional intrusion.

Related: Exigent Circumstances, Consent Search
Consent Search

A warrantless search permitted when a person with authority over the area gives voluntary permission, which may be limited or withdrawn at any time.

Related: Plain View Doctrine, Chain of Custody
Chain of Custody

The documented, unbroken record of who handled evidence, when, and how, from collection through trial, used to prove integrity and admissibility.

Related: Consent Search, Use of Force Continuum
Use of Force Continuum

A progressive framework describing levels of officer response from presence and verbal commands through lethal force, matched to the subject's actions.

Related: Objective Reasonableness, Deadly Force
Objective Reasonableness

The legal standard judging force by what a reasonable officer would do under the same circumstances, viewed from the scene rather than hindsight.

Related: Use of Force Continuum, Deadly Force
Deadly Force

Force that an officer knows creates a substantial risk of causing death or serious bodily injury, justified only to prevent imminent death or serious harm.

Related: Objective Reasonableness, Use of Force Continuum
Delinquent Juvenile

A minor adjudicated by a juvenile court as having committed an act that would be a crime if committed by an adult.

Related: Undisciplined Juvenile, Juvenile Petition
Undisciplined Juvenile

A minor who is beyond lawful parental control, regularly disobedient, or unlawfully absent from school, but who has not committed a criminal offense.

Related: Delinquent Juvenile, Status Offense
Status Offense

Behavior that is unlawful only because the person is a minor, such as truancy, running away, or underage alcohol possession, handled outside criminal court.

Related: Undisciplined Juvenile, Juvenile Petition
Juvenile Petition

The formal charging document filed in juvenile court alleging that a minor is delinquent or undisciplined and requesting court intervention.

Related: Delinquent Juvenile, Juvenile Custody
Juvenile Custody

Taking a minor into temporary protective or investigative custody under statutory authority, with prompt notice to parents and a detention hearing.

Related: Juvenile Petition, Parental Notification
Parental Notification

The requirement that parents or guardians be told promptly when a minor is taken into custody, questioned, or subject to a court proceeding.

Related: Juvenile Custody, Juvenile Petition
Juvenile Transfer Hearing

A proceeding to decide whether a minor's case should move from juvenile court to adult criminal court, weighing offense and rehabilitation history.

Related: Delinquent Juvenile, Juvenile Petition
Juvenile Records Confidentiality

Statutory limits on who may access juvenile court and law enforcement records, generally restricting release outside authorized justice and school personnel.

Related: Juvenile Petition, Parental Notification
Incident Command System

A standardized, scalable management structure that assigns command, operations, planning, logistics, and finance roles at an emergency scene.

Related: Unified Command, Emergency Operations Plan
Unified Command

A shared command arrangement in which multiple agencies with jurisdiction jointly set objectives and coordinate action at a single incident.

Related: Incident Command System, Mutual Aid Agreement
Emergency Operations Plan

A jurisdiction's written blueprint assigning roles, resources, and procedures for responding to and recovering from emergencies and disasters.

Related: Incident Command System, After-Action Report
Mutual Aid Agreement

A prearranged compact among agencies to share personnel, equipment, and resources across jurisdictional lines during an emergency.

Related: Unified Command, Emergency Operations Plan
After-Action Report

A structured review of an incident or exercise documenting what happened, what worked, gaps found, and corrective actions to improve future response.

Related: Emergency Operations Plan, Tabletop Exercise
Tabletop Exercise

A discussion-based training where participants talk through a simulated scenario to test plans, roles, and decision-making without deploying resources.

Related: After-Action Report, Incident Command System
Mass Casualty Incident

An event producing more injured or dead than local resources can handle, requiring triage, surge capacity, and multi-agency coordination.

Related: Triage, Incident Command System
Triage

Rapid sorting of patients by injury severity and survivability to direct limited medical resources where they will save the most lives.

Related: Mass Casualty Incident, Unified Command
All-Hazards Approach

Preparedness planning that builds capabilities usable across natural disasters, accidents, and intentional attacks rather than a single scenario.

Related: Threat and Hazard Identification, Emergency Operations Plan
Threat and Hazard Identification

A structured risk assessment process that inventories likely threats and hazards, estimates consequences, and sets capability targets for planning.

Related: All-Hazards Approach, Emergency Operations Plan
Fusion Center

A state or regional hub where law enforcement, intelligence, and public safety partners share and analyze threat information to prevent attacks.

Related: Suspicious Activity Reporting, Critical Infrastructure
Suspicious Activity Reporting

A structured process for documenting and routing observed behaviors that may indicate pre-operational surveillance or planning for terrorism or violence.

Related: Fusion Center, Critical Infrastructure
Critical Infrastructure

Systems and assets so vital that their incapacitation would weaken security, public health, safety, or the economy, such as utilities and transport.

Related: Fusion Center, Suspicious Activity Reporting
National Incident Management System

A national framework of doctrine, concepts, and terminology that standardizes how agencies at all levels coordinate during incidents.

Related: Incident Command System, Unified Command