As above, what crimanal checks do they do?

To cut a long story short i was given a card for this training place, I was approached by the fella due to the way i served him in the garage.

Am a big lad (ok fat ) and he asked some questions etc and ended up givin me a card for the training place for Security Staff.

http://www.neet-futures.org.uk/

Only reason am askin is i have an ABH charge from 2002, would this mean i have no chance in Enrolling on a course here?

Any help would be great