Tucnace has just submitted some Achievement Flag Info for
Shadow Burglar Achievements:
You can view the flags they submitted here:
Flag submission by Tucnace for Shadow BurglarTucnace said:The Collector achievement unlocked after collecting the glasses, the pocket watch, and the top hat. The camera does not seem to be required.
The Pacifist achievement unlocked during the first playthrough in the first level, while I went for the No Mercy achievement