one of the re-runs on FX last week, the camera was getting the cop paying for his meal and leaving the restaurant, then you hear gunshots going off and the camera guy is running after the officer. as the officer was walking out he heard someone calling for help across the parking lot, the BG gets in a car and starts speeding off while the cop is firing on him.
i may have some of the details mixed up, but it was a really cool part. they caught the guy a few blocks away.
all-in-all, i've seen more episodes of decent police on COPS than not, so i dont hold a grudge against that show.