Here's how it works:
The camera is “armed” by either an internal timer, external key fob, or light detection for night use only.
Once armed, the motion detector looks for one-time motion or else motion that lasts a prescribed period of time (20 seconds or more).
If motion is detected, the camera sets off the flash between one and four times, and then takes up to four pictures of it's field of view.
The field of view is between 25 to 75 feet wide, depending upon the zoom setting on the camera. The camera can take a readable picture of license plate in the pitch dark that is up to 100 feet away.
As motion is detected, the system also loudly proclaims a 14 second custom message – “Hey! You over there! You aren't supposed to be here! Your picture has just been taken for security purposes, now get out of here!”
The pictures are either stored on film or else digital memory, depending upon the type of camera.
Should the would-be perpetrator try to do something to the camera, they will find it's ruggedized steel frame and mounting assembly quite difficult to damage. Even a shot from a 9 mm gun won't do much!
Once the camera effectively scares away would-be perpetrators, you can consider putting a dummy Flashcam in its place and moving the real one to another location where you need it. It is relatively easy to move.