Bearing in mind the libel laws that have been pointed out, not on behalf of the accused of course but . . .
Flt Lt X was suspected of claiming quite a lot of home-to-duty but actually staying close to the base most nights.
On the night in question Master Spy shadowed Flt Lt X who, as suspected, drove straight to a caravan site, opened the door of a caravan, and went inside. The curtains were shut and Master Spy settled down for a bit of the coverts.
At end of shift Master Spy checks watch and drives home.
At the subsequent CM Master Spy relates exactly what happened until 6pm when he went home. Open and shut case?
Only witness for the defence was a vicar, chairman of the parish council at Flt Lt Xs home town. Flt Lt X was a councillor and the minutes showed that Flt Lt X was in a town council meeting that evening.
Next . . .