The A Slip of the Tongue Add-on for L.A. Noire (Xbox 360) has 5 achievements worth 100 gamerscore.
Complete 'A Slip of the Tongue'.
Find and inspect all of the Marquee-printed pink slips.
Correctly branch every question in the interview with Jean Archer.
During the Industrial Street raid, kill a goon by shooting the hanging engine block.
Catch and arrest Cliff Harrison before he is stopped by uniformed backup.