The last vestiges of Laz's undercover persona are blown when Jock orders him to start acting like a detective. He can no longer work the streets without risking his life from the criminals he once lived amongst. It's a terrible loss of identity which leads to a violent outburst. Defending his Senior Sergeant, he assaults a member of the public. This brings him under the cold hard scrutiny of the Internal Investigations. Before it's over, Laz could be charged with a criminal offence. (thetvdb.com)