Swiss security experts are preparing Roman Polanski's Alpine chalet for the movie director's house arrest.
A commercial security service team has entered the home in the exclusive resort of Gstaad.
They declined to say what they were doing during the Saturday visit, but the company handles a range of services — from video surveillance to alarm installations and armoured doors.
A condition of Polanski's house arrest is that he be fitted with an electronic monitoring bracelet that would detect if he tries to leave the chalet. That would cause him to lose the $4.5 million (£2.7m) in bail he is required to post.
Authorities say Polanski can be moved from jail to the chalet once the bracelet is working, probably Monday.