Let start by stating the most important fact the a dash camera system is made for citizens. They are mostly made in China and are made of plastic and cheap materials. The cameras imagers are often cmos and have a fish eye lens. Most of the dash cameras have a loop recording that can only go up to 5 minutes then they stop. Now on the other hand a police car camera system which has a full range advanced features that a police department needs for their job. For example a police car camera can accept a direct feed from a radar gun and display speed violations on the in-car video recordings.
Laying out some specific advantages to police car cameras is quite simple.
The main consideration about a dashboard camera should be its durability. In-car video cameras are run 24 hours a day, 360 days a year. This means that the quality of the components inside the dvr should be American made for reliability. Often police agencies will chose the most expensive car cameras instead of the dash camera that fits their needs. Least inexpensive unit from China with a camera head made by one manufacture and the rest of all the other components made by other companies. In this type of systems is a frankenstein of non compatible components cobbled together that often done work well together.
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