I just saw the elusive AI pulling a car over!!! Sorry no screenshot as I was in the middle of my own traffic stop. It happened a block away from where I conducted my own traffic stop! I was trying to hurry and get done so I could take a screen shot, but by the time I was able to get over there, he was pulling away.

I haven't seen an AI pull anyone over yet. However I've seen one in the middle of a traffic stop (searching the trunk) however it seems to be a random spawn that's always in the same place. 

The one by the church is a game spawned event.

I saw one to it looks really cool

Also the one on the Freeway Between Broker and Bohan on the slip road (Off ramp) towards Algonquin on the Bridge there is a Game spawned Traffic Stop or a police car sitting there or nothing!

No...this wasn't the original ones....This was a AI pulling a car over in traffic by Hatton Gardens

The only time I see AI cops going after random people is them chasing them down the street.

I would like to see it so bad.. I wouldn't even care if that's all they ever did haha.

I've seen a few AI traffic stops and i assisted the cops when i spotted it.