Here are the secret achievements you can unlock in L.A. Noire for the Xbox 360.
Huckster (15 points) – At Elysian Fields, outwit Leland Monroe when discussing his developments or advertising campaign
Moth To A Flame (70 points) – Complete all cases on the Arson desk
No Rest For The Wicked (15 points) – Complete all cases on the Vice desk
Paved With Good Intentions (15 points) – Complete all cases on the Traffic desk
Police Academy (15 points) – Complete all cases on the Patrol desk
Round Heels (15 points) – At the Bamba Club, get Dick McColl to give up the license plate of Celine Henry’s male companion
Stab-Rite (15 points) – At Ray’s Cafe, find the bloodstained knife on your first sweep of the crime scene
The Fighting Sixth (15 points) – At the Bus Shooting, talk Felix Alvarro into giving up the Marines involved in the Coolridge heist
The Simple Art of Murder (15 points) – Complete all cases on the Homicide desk