I've done a Police motorcycle training course myself, run by Pete Coole in North Wales. Part of the Bikesafe initiative.

It was excellent.  I cannot recommend this highly enough.

BikeSafe is an initiative run by Police Forces around the United Kingdom who work with the whole of the biking world to help to lower the number of motorcycle rider casualties. By passing on their knowledge, skills and experience, police motorcyclists can help you become a safer more competent rider.

They help you to increase your ability and confidence, so you can get even more enjoyment from riding your motorcycle.