After clicking on this link, I realised that this guy was the entertainer at my work's Crimble party night at a local football stadium.
I was driving that night, therefore sober and spent some time watching him scanning tables, sussing people out and being very selective as to who he picked to do his 'tricks' on.
As our party was fairly large, covering 3 tables, my colleagues were fascinated when he managed to make his pulse slow down and stop. When he got to my table, I had to picture my front door number and then it magically appeared on a bit of paper, scribbled like a child's writing.
He was, for the most very impressive, but they were all hammered. I still reserve my opinion on his talent. Maybe my cynicism.
Frankly I remain sceptical. I was attached into JSIW between '87 > 91 and I don't recall him. Students for the 'long course' were invariably linguists. There were exceptions made for specialist Int Corps guys and girls who were non-linguists and were on particular career paths.
It's more likely that he attended either or both, of the R to I or TQ courses.
As a benefit of the doubt he may well have attended the 'long course' post GW1 when the rules I am told, became a bit more fluid.
Depending on when you were on selection for THEM, it may be that this guy was one of them CAC wallahs and not Int Corps.
Edited to add:
Just re-read the article. So he joined in 88, left in mid 90's and was an interrogator?
Based on the premise that he didn't become an interrogator in 88-90 as a LCpl (or perhaps a Lt) in his first tour, and I seem to remember that you had to be min rank of Sgt to be an interrogator, he would not have been on the course until approx 93. I don't recognise the name at all and this all sounds a bit fishy to me. I also note that the article does not mention Int Corps, but military intelligence - a walt perhaps?