From WENN.com

The troubled actor was taken into custody on Thursday (27Dec12) after undercover vice officers allegedly caught him committing a ""lewd act"" while watching a pornographic movie in a private booth at an adult store in Hollywood.

He was booked on a lewd conduct charge and released on bail, according to TMZ.com.

Stahl is said to have told a cameraman for the website his arrest was a ""misunderstanding"" as he exited the police station.

The 33 year old has battled a series of personal problems this year (12) - he disappeared multiple times and also checked into a rehabilitation clinic to receive treatment for substance abuse.