Polac

An accident involving a police car is known as a 'polac', and is investigated 'independently' by the area traffic department rather than by the division to which the driver belongs.

Source: wiktionary

Before getting out of his van, he sent out a Polac (police accident) bulletin on his radio.

Source: wiktionary

Two weeks in my opinion cant surely be enough.¶ Oh well, whatever saves money. (they way to stop Polacs is apparently to create an initial phase pursuit course (1 to 2 days)! mmmm I think perhaps the way might be to stop decreasing the length of the course and to give drivers some appropriate vehicles, but thats another thread!

Source: wiktionary

I doubt that the organisation is going to be terribly concerned that you arrive at that call thirty seconds later than you would have done otherwise but can be pretty sure that they would have something to say had you smashed up your police car on the way there. I doubt also that CPS would be satisfied with the defence of '...It was my first night duty … and I was rather tired...' after your high profile POLAC gets splashed all over the national newspapers and television news.

Source: wiktionary