PSD Geographical Mapping and Jurisdictional Knowledge 3 — Questions and Answers
Question 1: What is the purpose of a 'beat' or 'sector' in dispatch geography?
- To identify the strongest radio signal areas
- To divide a jurisdiction into smaller patrol zones for efficient unit assignment (Correct answer)
- To mark areas with high crime rates only
- To designate zones where calls are automatically held
Correct answer: To divide a jurisdiction into smaller patrol zones for efficient unit assignment
Beats or sectors divide a jurisdiction into manageable patrol zones to optimize unit response and coverage.
Question 2: An Enhanced 911 (E911) system provides a dispatcher with an automatic location identification (ALI) showing an address in a neighboring jurisdiction. What should the dispatcher do?
- Ignore the ALI and only dispatch local units
- Verify the location and transfer or conference the call to the appropriate jurisdiction's dispatch center (Correct answer)
- Dispatch local units first and notify the other jurisdiction later
- Request the caller to call the neighboring jurisdiction directly
Correct answer: Verify the location and transfer or conference the call to the appropriate jurisdiction's dispatch center
When ALI shows a location in another jurisdiction, the dispatcher must coordinate with or transfer to the appropriate dispatch center.
Question 3: What does the term 'jurisdiction' mean in the context of public safety dispatching?
- The physical size of a city in square miles
- The legal authority and geographic area within which an agency operates (Correct answer)
- The number of units available in a given area
- The radio frequency assigned to a specific agency
Correct answer: The legal authority and geographic area within which an agency operates
Jurisdiction defines the legal geographic boundaries within which a public safety agency has authority and responsibility.
Question 4: A dispatcher uses a Thomas Guide or street atlas. What is a 'page and grid' reference?
- A page number and radio channel combination
- A map book page number combined with an alphanumeric grid coordinate to locate a specific area (Correct answer)
- The number of intersections on a given street
- A reference to a police report filing system
Correct answer: A map book page number combined with an alphanumeric grid coordinate to locate a specific area
Page and grid references in a street atlas combine a page number with an alphanumeric grid to help dispatchers quickly locate specific streets or areas.
Question 5: When a fire station's first-due area does not align with municipal boundaries, what challenge does this create for a dispatcher?
- Units may be dispatched into areas outside their political jurisdiction requiring coordination (Correct answer)
- The fire station must relocate to match the city boundary
- Radio communications become automatically restricted
- CAD systems will generate an error and lock the call
Correct answer: Units may be dispatched into areas outside their political jurisdiction requiring coordination
Misalignment between fire response areas and political boundaries can require dispatchers to coordinate across jurisdictions for proper legal authority.
Question 6: What is a 'premise history' flag in a CAD mapping system most useful for?
- Tracking the property tax status of an address
- Alerting responding units to prior incidents, hazards, or special conditions at a specific location (Correct answer)
- Automatically routing the nearest ambulance
- Generating an invoice for services rendered
Correct answer: Alerting responding units to prior incidents, hazards, or special conditions at a specific location
Premise history flags notify dispatchers and responders of previous incidents or hazards associated with a specific address.
Question 7: A dispatcher is told by a field unit that they are 'out of service' in a grid square with a large apartment complex but no specific building number is given. What mapping tool best helps identify which building to assign next?
- A weather radar overlay
- A detailed parcel or building footprint layer in the GIS/CAD map (Correct answer)
- A traffic camera feed
- A satellite weather map
Correct answer: A detailed parcel or building footprint layer in the GIS/CAD map
Building footprint or parcel layers in GIS/CAD allow dispatchers to visually identify individual structures within a complex.
PSD Geographical Mapping and Jurisdictional Knowledge 3
What is the purpose of a 'beat' or 'sector' in dispatch geography?