Chase yourself

As the dog chases its own tail, so the insult developed to 'go and chase yourself.' This all brings us to this story. An undercover police officer chased himself for twenty minutes under instruction from a CCTV operator. I'm picturing the scene, but rather wish that I could literally picture the scene, with the pretender to the Clouseau throne tiptoeing around. The idea of a cop chasing himself is tragi-comic but let's face it, more comic than tragi. A somewhat arresting scenario.