Its funny you mention CSI. I absolutely love the show, and a great deal of it is "technically" accurate, but.......
The problem with it is that the world moves much more slowly in real life. People don't uderstand that DNA tests can take a long time, or that there is a back log in the lab, or any number of things that can delay getting results.
Sometimes there isn't anything new that those tests show you and you are still looking the old fashioned way.
CSI is great, but it can make your job a lot harder because people get an inaccurate view of how it really works.
I agree with the keeping up appearances though, its common enough in the banking industry, and in many others for that matter.
Romstar