Final answer:
Service Area Analysis is the network analysis type used to find areas within a 5-minute distance from a police department.
Step-by-step explanation:
The network analysis type that you would use to find areas within a 5-minute distance from a police department is Service Area Analysis. This type of analysis helps determine the areas that can be reached within a certain time or distance from a specific location. In this case, you would set the police department as the facility location and specify a travel time of 5 minutes. The analysis will then generate a service area polygon that represents the area that can be reached from the police department within that time frame.