Three New Mexico firefighters have been charged with gang-raping a colleague’s sister — with an affidavit claiming one even searched for, “How long does DNA stay in vagina?”

Albuquerque Fire Rescue Lt. Aden Heyman, 46, Firefighter Angel Portillo, 32, and since-retired driver Anthony Martin, 44, were busted Wednesday and charged with second-degree rape, KOB4 said.