barrier in mass effect 2??

I was wondering what class has barrier in mass effect 2? I loved this skill in the 1st ME, and I saw that the black guy whatever his name is has barrier but Im not sure what class he is, can anyone tell me which class or classes has barrier..thanks:)

i am pretty sure it is adepts, however my vanguard is still pretty weak so im not sure.

Yeah.. that black guy lol.

No I didnt mean tech armor I want the skill Barrier that was in the 1st mass effect game. It was probably my favorite skill in the 1st one and I was wondering if your characten have it. Like I said the kanye west looking guy has it but I was wondering if your character can get the barrier skill and which class do u have to be to have it.