my say would be ''memory cant be just deleted just like that its far more complicated ..u can go as far as suppressing it thats how good it gets..but u will always stumble upon it no matter what u do..either through some smell that assosiactes with the event or a word or a gesture some one did or anything else

and no hynosis doesnt work like that..u can never be brainwashed ...the subconcious mind can be suggested not submissive u can never ask someone to do anything agaisnt thier will under hypnosis or against thier beliefs..they will usally wake up...u can suggest they do something but theres no 100 sure they will do it