Kanye West was forced to report to the Hollywood LAPD station to be booked in connection with his misdemeanor assault case in which he previously put hands on a photographer at LAX.  Earlier this month he plead "no contest" which resulted in him being placed on 2-year minimal probation, and also a mandatory 24 private therapy sessions must be completed for Kanye's anger management.  

He and his lawyer arrived at the police station quietly yesterday, Thursday, March 27th, where he got his mugshot taken and also fingerprinted.  While this process would take the average person multiple hours to complete, Kanye was in and out of the precinct within a mere 49 minutes.

Source: TMZ.com