Rumer Willis with party slut Lindsay Lohan

Bruce Willis' daughter Rumer was partying in a Maryland hotel room raided by police, who arrested a man on drugs charges.Rumer, whose mother is Demi Moore, was one of four people in a room at the La Quinta hotel when a member of her new film's production crew was arrested for possession of marijuana.The man, named as Christopher Henry, is the 'key grip' on independent film 'From Within', which stars Rumer and is currently shooting in Aberdeen.Police had reportedly been called to the hotel after other guests complained about the noise.Police chief Randy Rudy said: "What I was told by my officer was that Rumer was in the periphery and was not related to this arrest in any way."The incident will still concern her father, however.Last month, Bruce admitted he fears his daughters Rumer, 18, Scout LaRue, 16 and Tallulah Belle, 13, could get involved with drugs and alcohol. He said: "Demi and I have talked to the girls about the perils of drugs and about how on both sides of the family, they have a predisposition to alcoholism."I hope we've sent them into the world with the right amount of information."Representatives for Bruce and Demi both refused to comment on Rumer's arrest.