IA POST key terms

The documented, unbroken record of who handled evidence, when, and for what purpose, from collection through final disposition, so its integrity can be defended in court.

A reasonable belief, based on specific facts and circumstances rather than suspicion alone, that a person committed an offense or that evidence will be found in a place.

A lower standard than probable cause: specific, articulable facts suggesting criminal activity, enough to justify a brief investigative detention but not an arrest.

A brief detention of a person based on reasonable suspicion, allowing an officer to investigate and, if warranted, conduct a limited pat-down for weapons.

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

The advisement of rights to silence and to counsel that must precede custodial interrogation, so statements made afterward can be used against the suspect.

Questioning by law enforcement that occurs after arrest or when a reasonable person would not feel free to leave, triggering the requirement for rights advisement.

A knowing, intelligent, and voluntary decision to give up a right, such as the right to remain silent, made after being advised of that right.

A judicial order authorizing officers to take a named person into custody, issued only after a finding of probable cause supported by sworn information.

A written statement of facts, sworn or affirmed under penalty of perjury, that supports a request for a warrant or other court action.

A court order authorizing officers to search a specific place or person for specific items, issued upon probable cause and limited in scope to what it describes.

The principle that evidence obtained through an unconstitutional search or seizure is generally inadmissible in court, with limited recognized exceptions.

The systematic gathering and preservation of physical and documentary items at a scene, following procedures that protect their integrity and later admissibility.

The introduction of foreign material or alteration of a scene that reduces the reliability of evidence, prevented by scene control, protective equipment, and careful documentation.

A framework describing escalating levels of officer response matched to subject behavior, from presence and verbal commands up to deadly force, with de-escalation preferred when feasible.

Techniques such as time, distance, cover, communication, and tactical repositioning used to reduce the intensity of an encounter and avoid unnecessary force.

Force that an officer knows or reasonably should know creates a substantial risk of causing death or serious bodily injury, justified only under narrow legal conditions.

The legal test for judging force: whether it was objectively reasonable given the totality of circumstances, including the severity of the offense and the threat posed.

The practice of documenting incidents factually, chronologically, and completely, recording observations and actions rather than opinions or conclusions.

Contemporaneous written or recorded observations made by an officer during an incident, later used to prepare formal reports and to refresh memory for testimony.

The intentional crime of making a false material statement under oath in a legal proceeding, punishable criminally and damaging to an officer's credibility.

A trained response to people experiencing mental health or behavioral emergencies, emphasizing communication, containment, and connection to services over immediate enforcement.

The obligation of an officer to stop or report excessive force used by another officer, and to render aid when appropriate, regardless of rank or relationship.

A rapid first-responder approach to a person actively causing death or serious injury, prioritizing immediate contact with and stopping the attacker over waiting for additional resources.

A standardized, scalable management structure that assigns clear roles for command, operations, planning, logistics, and finance during multi-agency emergency responses.

A formal or informal arrangement in which one agency provides personnel or resources to assist another during an emergency or planned event.

A national framework that standardizes terminology, command structures, and resource management so agencies at all levels can work together during incidents.

An officer who holds a formal rank and authority granted by the state or governing body, such as a lieutenant or captain, distinct from a non-commissioned or entry-level officer.

An officer appointed by warrant rather than commission, holding specialized technical or leadership authority and ranking between non-commissioned and commissioned officers in many systems.

A sworn commitment, taken upon appointment, to support the constitution and laws and to faithfully perform the duties of the position.

The standardized body movements and formations used for parades, inspections, and formal occasions, building discipline, teamwork, and precision in a unit.

The formal line of authority from the highest commander down through each subordinate level, defining who reports to whom and how orders and information flow.

A directive from a superior that is legal, within the issuer's authority, and related to official duties; subordinates are generally expected to obey it.

The written rules governing ethical and professional behavior, including prohibitions on discrimination, harassment, conflicts of interest, and misuse of position.

Rules specifying authorized clothing, insignia, grooming, and appearance standards, ensuring members present a consistent and professional image.

A panel that evaluates candidates for advancement against published criteria such as performance, testing, and seniority, and recommends or selects those to be promoted.

Required physical performance benchmarks, such as timed runs and strength tests, that members must meet for appointment, retention, and certain assignments.

A facility responsible for receiving emergency calls and dispatching the appropriate police, fire, or medical resources, sometimes called a PSAP.

Software that records calls, recommends or assigns units, tracks their status, and maintains a time-stamped log of the incident for later review.

Ranking incoming calls by urgency so that limited resources go first to incidents involving immediate danger to life or property.

The structured questioning used to gather location, nature, and safety details from a caller, determine the appropriate response, and decide what instructions to give.

Step-by-step guidance given to callers before responders arrive, such as CPR, bleeding control, or evacuation directions, delivered within approved protocol.

A protocol-driven system that lets telecommunicators assess medical emergencies, give pre-arrival care instructions, and select the correct response level for the patient.

The current availability state of a field unit, such as available, dispatched, en route, on scene, or out of service, which determines what it can be assigned next.

The practice of keeping transmissions brief, clear, and structured, using plain language and standard phrases so critical traffic is not blocked or misunderstood.

The use of plain, everyday language in radio communications in place of codes, reducing confusion among agencies and responders during multi-agency incidents.

The legal exposure of dispatchers for negligent acts or omissions, such as failing to relay critical information or to follow established protocols.

A structured process of sampling and evaluating recorded calls and radio traffic against standards to identify training needs and improve performance.

An emergency calling system that automatically delivers the caller's address and callback number to the answering point, helping when the caller cannot speak.

A call placed through a text telephone device used by people who are deaf or hard of hearing, requiring the telecommunicator to communicate by typed text.

The procedure for handling a 911 call with no response, using targeted questions, background sounds, and location data to determine whether help is needed.