Shadow, if he's still in school no matter what his ranking was the police wouldn't accept him as a full fledged officer. Maybe a deputy or a consultant but they would not issue him a gun or badge. But it doesn't really matter as I cannot accept that CS. The reason being that he doesn't fit at all with the setting or group, and since the police will be an active force he very likely will get arrested sometime down the road. I don't want to do that and destroy your enjoyment after you've started playing so here's a fair warning. Stick with the character and run the very serious, very real risk of him getting arrested as that is the most realistic scenario in the IC, or make a different character who won't be.