Catalytic converter theft isn't just a problem here in Acadiana, it's a problem all over the U.S. and the world. The whole thing seems confusing and odd, so let's take a look at why thieves are stealing catalytic converters and, what you can do to prevent becoming a victim. Just yesterday the Lafayette Sheriff's Department announced they were looking for a thief who stole a catalytic converter from a GMC C4500 truck in Scott. If your catalytic converter gets stolen, you're going to be in a bad spot. Technically your vehicle can still run without one, but the smell alone from the emissions will make you wish they had just stolen the whole thing.