The theft in the southern city of Regensburg happened early Tuesday. Police in Regensburg said Friday a witness reported one of the three people involved was the 31-year-old Briton, who was in the city to work on a film.
They say Doherty and a German companion were questioned Thursday.
Police say the men told investigators they were on their way back from a bar crawl when one of the trio hit the window of the shop, which broke. They say the men said they couldn't remember details of what happened next because of how much they had drunk.
The guitar and record sleeve were later found in Regensburg's streets. No charges had been filed.
