These cameras have been in place for some time in this area. I was told by a coworker that the trailers are the New Mexico version of Speed Cameras. He stated that NM does not use any indication that you are entering an "Enforcement Zone"
Does anyone know for sure what these cameras are used for?
[ame=http://www.youtube.com/watch?v=cWn2BrkGww4]YouTube - Are these Speed cameras in New Mexico?[/ame]