Police Slingshot?

In Tiajuana, Mexico, all guns have been confiscated from the police, and replaced with slingshots. Apparently people think that some officers have been helping drug traffickers, so they're going to check everyones gun or something. I didn't read much about it, but you can find one article about it here at FOX. Can you imagine a cop telling you to freeze, not take another step, or he'll shoot you with his slingshot? I'd laugh.