@snood,
I’ve got a nasty feeling in my gut that the defence will impugn such testimony. They’ll try to say this was common police practice and his superiors are covering their backs and hanging him out to dry.
It’s what racists like that like to do, show themselves as the little man up against the machine, recast themselves as victims.
But to answer your question, no, I can’t remember another case where a superior police officer criticised the behaviour of a subordinate in such stringent terms.
Over here a serving member of the metropolitan police has just been found guilty of being a member of a banned far right terrorist group.