Treadigraph.
The funniest thing is that his claim to have been in the SAS has enough truth (in his mind I suppose) for him to be able to embellish it ever so very very slightly
He was accepted for training in 21 SAS, but didnt get past holding, didnt complete basic training, trade training, get badged or serve in a Sqn
Try looking him up on the UK paramedic register, or any other of his 'occupations' and you will see he appears on very few lists.