An oldie, but a goodie as they say. We have always had a great affection in our hearts for the detective/lawyer combination of Law and Order.
If you happen to never have watched TNT or TBS and have never seen Law and Order; it basically follows a crime (usually a murder) from the act to the search for the suspect and through the criminal trial.
Quick vote: Turn on TBS or TNT right now. Do it. Watch Law and Order, I'm sure it's on right now. You won't regret it.