Cute story from Yahoo News (“British police officer chases himself for 20 minutes”):

http://ca.news.yahoo.com/blogs/daily-buzz/british-police-officer-chases-himself-20-minutes-204344634.html

Directing other units remotely with the available information and tools can be challenging.  Just as a dispatcher may be relaying information from 911 callers, the CCTV operator was directing a police officer on the scene.  Unfortunately, the information he had at hand – the surveillance video feed was not enough for the operator to recognize that the suspicious person he was watching was in fact the police officer he was directing.

The moral of the story?  Raw information, even from state-of-the-art systems, is dependant on human interpretation and analysis, and mistakes do happen.  Keeping an objective mind when presented with the data is important so that you don’t let your imagination or assumptions skew the information.