First of all, please remove the [TC] tag from the skin. [TC] tag can be used only by [TC] members.
The front needs work, it doesn't look like the front of a police car.
I don't think the blue line does you any favours, but you're also missing big "POLICE" text.
Skin in post #5 should be fine
Skin Approved
The skin in this thread has been approved and can now be used on the servers!