We honestly can't say how much time will be taken off....it al depends on them. Most prisons have the good behavior rule, due to over crowding, & if his record, doesn't have any violent crimes, or he doesn't break rules in there, then that's a possibility. If they say they are doing halftime, then theu might be, but things can always change in there... I've heard stories, where this is said, but they may stay a few months longer, but that's rare. Why are they given half sentence away? What were the charges? We don't know what the prison is like. This is more of a legal forum, but there are some great jail/prison forums outthere, some dedicated, to the lovedones on the outside.... Frankly, 4yrs isn't that bad at all, for drug charges,& since they are doing half time.... alot of drug charges, unfortuantely, can have maximum of 20yrs. On first offenses aswell.... they usually do probation, shorter terms, but the fact that its possible... ah. It kind of irks me, that murders& rapists can get out way to early, while a non-violent drug "offender" is stuck in jail, for decades. Gah. there needs to have a change somewhere... anywho, sorry bout my rant. Good luck though. It'll go by quick, & when he gets out, you two can just imagine how happy you'll be
hehe.