Baldwin Brother Busted

TMZ has learned that Daniel Baldwin has been arrested on charges of possession of cocaine. Police sources tell TMZ that Daniel, brother to Alec, Stephen and Billy, was arrested on April 22nd, after cops received a call that a woman had been threatened at the Ocean Park Motel in Santa Monica, California.

We're told that the police responded to a motel room where Baldwin and man named Buddy Winston were front and center. Cops said they found cocaine and arrested both men. Baldwin's bail was set a $10,000.

Brother to several well-known actors, Daniel Baldwin is an actor in his own right. His credits include Homicide: Life On The Street,' 'NYPD Blue' and a number of movies.

TMZ has been told that the Los Angeles County District Attorney has declined to prosecute the case and referred it to the Santa Monica City Attorney. That means, at worst, Baldwin could be prosecuted for misdemeanor drug possession.