CA POST Dispatcher study materials
CA POST Dispatcher study resources

CA POST Dispatcher key terms

CA POST Dispatcher · Get comfortable with the vocabulary.

Structured Call Interrogation

A planned, ordered set of questions used to pull the essential facts from a caller quickly and the same way every time: what happened, where, when, who is involved, weapons, and injuries.

Related: Call Classification, Open-Ended Question, Pre-Arrival Instructions
Call Classification

Sorting a caller's problem into a standard incident type and priority code, so the call is routed to the right responders with the right urgency and the right resources attached.

Related: Call Priority Level, Structured Call Interrogation
Location Verification

Confirming the exact address of an emergency by repeating it back and asking for cross streets, unit numbers, or landmarks, because an unverified location sends every responding unit to the wrong place.

Related: ANI/ALI, Callback Number, Reflective Listening
Callback Number

The phone number where the caller can be reached again, read back digit by digit for accuracy so a disconnected or dropped call can be reestablished without delay.

Related: ANI/ALI, Silent Call or Open Line
ANI/ALI

Automatic Number Identification displays the caller's phone number; Automatic Location Identification displays the address tied to that phone. Both can be wrong, outdated, or from another location, so they support but never replace asking the caller.

Related: Location Verification, Callback Number
Silent Call or Open Line

A call where no one speaks or the line stays connected without conversation. It is treated as a possible emergency and verified by callback or response rather than dismissed as a pocket dial.

Related: Callback Number, Duplicate Call
Pre-Arrival Instructions

Approved, scripted directions given to a caller before responders arrive, such as starting CPR, applying pressure to a wound, or moving people away from a hazard.

Related: Structured Call Interrogation, Call Classification
Duplicate Call

A second report of an incident already entered in the system. It is linked to the original so units are not sent twice, while any new details from the second caller are still recorded.

Related: Call Classification, Silent Call or Open Line
TTY/TDD

A text telephone used by deaf or hard-of-hearing callers, answered through a special device or relay service so the conversation is conducted in typed text rather than speech.

Related: Structured Call Interrogation, Callback Number
Clear Text

Plain everyday language used instead of agency codes, so every responder on the channel, including those from other agencies, understands the message on the first hearing.

Related: Phonetic Alphabet, Radio Discipline
Phonetic Alphabet

A standard word list such as Alpha, Bravo, Charlie used to spell names, license plates, and tags over the radio, preventing confusion between letters that sound alike.

Related: Clear Text, Radio Discipline
Talkgroup

A defined channel, or set of channels, shared by a particular group of units. Traffic on other talkgroups cannot be heard unless the dispatcher patches them together.

Related: Unit Status, Radio Discipline
Unit Status

The standardized condition of a field unit, such as available, en route, on scene, transporting, or out of service, which tells the dispatcher who can be assigned right now.

Related: Resource Allocation, Call Stacking
Resource Allocation

Deciding which units and how many to send to an incident, weighing its priority, the units' locations and skills, and how much coverage remains for the rest of the area.

Related: Unit Status, Move-Up Coverage, Mutual Aid
Mutual Aid

A standing agreement in which one agency sends personnel or equipment to assist another that lacks the units, specialty skills, or capacity to handle an incident alone.

Related: Resource Allocation, Incident Command System
Move-Up Coverage

Repositioning available units into an area left empty after a dispatch, so calls in that area still receive a timely response until the original unit clears.

Related: Resource Allocation, Unit Status
Emergency Traffic

A radio announcement that the channel must be kept clear for a life-threatening message. Other units hold their transmissions until the emergency traffic has been passed and acknowledged.

Related: Mayday, Radio Discipline
Mayday

The spoken distress signal used by a responder whose own life is in danger. It overrides all other radio traffic on the channel until it is acknowledged and help is committed.

Related: Emergency Traffic, Responder Safety
Radio Discipline

The habit of keeping transmissions short, identifying the unit and the addressee, waiting for a clear channel, and never interrupting priority traffic with routine business.

Related: Clear Text, Emergency Traffic
Incident Command System

A shared management structure that assigns roles such as command, operations, and staging, giving multi-agency incidents one clear chain of authority and one voice on the radio.

Related: Mutual Aid, Resource Allocation
Call Priority Level

A ranking of incidents by threat to life and safety, which determines the order calls are dispatched and which ones may be held in a queue without response.

Related: Call Classification, Call Stacking
Situational Awareness

Maintaining a current mental picture of unit locations, open calls, officer status, and changing conditions, and recognizing quickly when that picture no longer matches reality.

Related: Premise Hazard, Responder Safety
Premise Hazard

A stored warning attached to a location, such as prior weapons calls, hazardous materials, or aggressive animals, which is read to responding units before they arrive.

Related: Responder Safety, Situational Awareness
Responder Safety

Steps taken to protect field personnel, such as sending backup, holding the approach, or relaying a known hazard, even when a caller insists there is no time.

Related: Premise Hazard, Mayday
Call Stacking

Holding lower-priority calls in a pending list because no unit is free, while monitoring them so they are not forgotten and do not sit unanswered too long.

Related: Call Priority Level, Unit Status
Critical Incident

An event serious enough, such as an officer-involved shooting, a mass casualty event, or a line-of-duty death, that it triggers special notification, support, and documentation procedures.

Related: Emergency Traffic, Situational Awareness
Active Listening

Giving full attention to a caller, hearing tone and background sounds as well as words, and confirming understanding before moving to the next question.

Related: Reflective Listening, Call Control, Empathy Statement
Call Control

Guiding an upset, angry, or rambling caller with short and direct instructions, so the needed information is gathered without the caller steering the conversation.

Related: De-escalation, Active Listening
Reflective Listening

Restating the caller's key facts or feelings in your own words, which lets the caller correct mistakes and signals that what they said was actually heard.

Related: Active Listening, Location Verification
De-escalation

Using a calm, steady tone and simple, non-threatening language to lower a caller's or subject's agitation so the situation does not become more dangerous.

Related: Call Control, Empathy Statement
Open-Ended Question

A question that invites a full narrative answer, such as asking the caller to describe what happened, used early to capture the whole story before narrowing with specific questions.

Related: Structured Call Interrogation, Active Listening
Empathy Statement

A brief spoken acknowledgment of what the caller is feeling, which builds trust and cooperation without promising a response time or an outcome the dispatcher cannot guarantee.

Related: De-escalation, Reflective Listening
CAD Narrative

The running written record of an incident inside the computer-aided dispatch system, capturing call receipt, units assigned, status changes, updates, and final disposition as they occur.

Related: Time Stamp, Chronological Log, Audit Trail
Time Stamp

The system-generated time recorded for each event, such as call received, dispatched, arrived, and cleared, which supports review, performance analysis, and legal accountability.

Related: CAD Narrative, Audit Trail
Chronological Log

A record arranged in the order events happened, showing what occurred and when, rather than grouping information by topic or by person involved.

Related: CAD Narrative, Time Stamp
Objective Language

Factual, neutral wording that reports what was said, heard, and observed without opinion, blame, speculation, or emotional labels about the people involved.

Related: CAD Narrative, Chronological Log
Audit Trail

The permanent history of who created, changed, or viewed a record and at what time, which means every entry must be accurate, complete, and entered by the person who made it.

Related: Time Stamp, Confidential Information Release
Confidential Information Release

The rules limiting who may be given names, criminal history, medical details, or other protected data, allowing release only to persons with both a legal right and an operational need to know.

Related: Audit Trail, CAD Narrative