Carla's comment is accurate. I was recently stopped for speeding. After checking my record through his on board computers, and talking to me, he did not give me a ticket. Then he helpfully casually mentioned that there was a criminal with my first and last name with an outstanding warrant for arrest who he could tell was not me personally. His point was, in case I was mistakenly taken as that person, that I could mention this to other policemen and maybe circumvent a false arrest.

I have a super common first, middle and last name. scary - nothing I can do.