What does a cop wear to his retirement ceremony?

[Ozman1944]

I thought that, but didn't want to sound picky.
Perhaps the Police Uniform is not permitted to be tampered with?

[The Wizard of BC]

The tunic is part of his normal uniform and cannot be changed, altered, or tampered with.
It took a special authorization to allow him to wear his kilt with uniform tunic in the first place.

OK, the tunic is too long. We left off the sporran, (He don't need no sporran, he has pockets.) and apparently all went well.