They called it an Auror Registration Form. Supposedly, anyone who completed it would be accepted into boot camp, which was designed to weed out the weaker wheat from the stronger chaff, so to speak. Harry didn't think the process was streamlined enough – if there was one thing he had learned from leading the DA, it was that proper vetting needed to be put in place. He might have otherwise been tipped off about Marietta Edgecombe, that foolish friend of Cho's who had ended up selling them all out to Umbridge. Not that Marietta had signed up to intentionally get flipped into an Inquisitorial Squad informant. The example only made Harry feel more relieved that an actual mole hadn't infiltrated – say, a really smooth talking Slytherin.