Two men were arrested for possession of class A drugs - and an eyewitness said he saw a samurai sword recovered from the home.
Four Thames Valley Police vehicles raided the house in Friarage Road, Aylesbury, at 11am.
One of the men, 23, was bailed until February 8 for handling stolen goods, possession of cannabis and possession of cocaine.
The other man, 22, was arrested for possession of cannabis and remains in police custody.
An eyewitness said: “They took all sorts of stuff out of there, even a samurai sword.
“There were bikes, too, and bags full of stuff. Initially I just thought it was a drugs raid.”