NJME
Did one in Farnbourgh in 2007, took 12 hours, all one day. Simulator ride with someone you do not know, ours was a Beech jet. Theoretical questions about what if. What if your flight attendant is sexually harrased by a very good client, where do you see your self in 5 years, etc, etc. The rules to follow, the compound in Jeddah, blah blah blah. There were people there from all over theplace, couple of guys had shagged them selves getting there, I remember one bloke from OZ, he showed up late, changed in the bathroom and was one of the last to get interviewed, wow, what a day.
I did not get hired, do not know who did and who did not, kind of a funny group. I was working in the ME at the time, or just previously, and had been asked by a few NJME crew to apply, guess I was not the right kind of guy for them.
Good luck