This is a two-way street I think. TV shows and media descriptions of investigative techniques as promote a complacency amongst criminals as well.
My brother calls this the "I'm a genius" factor. Some criminals watch a lot of TV, decide that its an accurate protrayal of the investigative techniques likely to employed against them, and then screw up huge and go to jail.
I watched the original few episoded of CSI, but it didn't take long for me to see that it was definitely not "Law and Order."