He was not screwed over by the police. Roomates qualify under DV, and the police are REQUIRED to take action. If you have a problem with DV being a disqualifer, I agree. An indictment is required for a person to be tried in a felony case. All felony cases are reviewed by a Grand Jury. If they believe enough evidence is present to take to trial, they return an indictment.
An information is what charges a misdemeanor.