A couple of guys in the dept served in Cyprus a long time ago and have knowledge of the case involving an RAF Police Cpl (WFS - one of 2 brothers in the same unit).
The story is that one evening whilst WFS was sat in the rear of an open top landrover and armed with a loaded weapon ready for action, he noted an individual run towards the vehicle and lob a grenade into it, so WFS promptly picked it up and threw it away, upon which it exploded a couple of seconds later... He was awarded the BEM for Gallantry, with a silver oak leaf emblem on the ribbon. His status as a 'mere' Cpl mean't he was not considered worthy of a 'higher class' award. He retired as a Warrant Officer in the mid 80s.
One of our chaps suggested that had it been a commissioned officer in the vehicle, he would have very likely have thrown himself out of it, leaving the fate of the driver and front seat passenger to God!