This is why Batman would never really work

[wisportswriter]

Area Man Poses as federal agent, brings down small town's meth problem
http://www.nytimes.com/2008/07/01/us/01impostor.html?pagewanted=1&ei=5124&en=add4f5dd8fee5640&ex=1372651200&partner=permalink&exprod=permalink

Kudos to the reporter from the local weekly newspaper for breaking the poser's background (or lack thereof).

 

[Clever username]

There's a slight difference in that Batman isn't pretending to be someone else. Now, whether his actions and methods were to hold up in court is a different matter.