Many years ago, I knew a guy who was nicknamed "Metro". He earned the nickname after impersonating our local "Metro Drug Squad". His MO was to bust into the house of a known drug dealer shouting "Metro Drug Squad, everyone down on the floor". Of course, with weapons drawn and identifying themselves as LE, anyone and everyone in the house immediately hit the floor, belly down, with their hands clasped behind their heads. Being drug dealers, they never questioned that this was a real raid by LE. With everyone down, "Metro" and his partners in crime proceeded to empty all pockets of cash and drugs. Next came the search of the house, netting more cash and drugs. For "Metro" this was lucrative on a couple of occasions. The third time he tried to pull it off can be seen as "divine justice". As he and his buddies ran from the house with their cache of cash and drugs, they were met with shouts of "Metro Drug Squad, down on the ground!!" They had picked the wrong drug dealer to raid as this one was the subject of an ongoing investigation by the real "Metro Drug Squad". A subsequent search of the house and occupants netted no drugs or drug money. "Metro" and his cohorts were the only ones charged and convicted as they had all the evidence. The dealer and his residence were clean. What started out to be a bad night for the dealer ended up a lucky break. True story. To this day "Metro" is better known by his nickname than by his real name. I haven't thought about him for a long time until I read the story in the link. Very similar set of circumstances.