A Level III sex offender was charged with trespassing and other offenses this morning after he was arrested at Massachusetts General Hospital yesterday, Suffolk County District Attorney Daniel F. Conley said.

FRANCIS PELOSI (D.O.B. 9/23/53) of Boston was held on $1,000 cash bail today at his Boston Municipal Court arraignment for trespassing, disorderly conduct, threats to commit a crime, possession of a Class E substance, and larceny under $250. Assistant District Attorney Patrick Devlin recommended that his open bail for failing to register as a sex offender be revoked; Judge Edward Redd denied that request.

Pelosi was arrested shortly before 7:00 yesterday evening after refusing to leave the hospital’s emergency department. Boston Police were dispatched to the scene to assist MGH Police in removing him from the premises.

Hospital staff also reported to police that Pelosi stated he would kill the chief of the Chelsea Police Department; a former Chelsea Police chief is employed in a security position within the hospital.

Pelosi had been locked in a hospital men’s room for about 10 minutes when Boston Police arrived at the scene. Next to his suitcase outside the restroom were a pair of hospital scrubs and a pair of hospital signs for the social work, psychiatry, and behavioral health departments.

After an additional seven or eight minutes, the officers forced their way into the restroom and ordered Pelosi to wash his hands and leave. Instead, Pelosi allegedly began to pack and unpack his suitcase while verbally abusing the officers.

After being escorted from the building with multiple warnings to leave or be arrested, Pelosi allegedly called the officers a group of “losers” and tried once more to enter the hospital. About 45 minutes of unsuccessful negotiations, police arrested him.

During a search of his property, authorities recovered a bottle of MGH hydrogen peroxide, a small baggie of marijuana, and approximately 250 pills of various types.

Pelosi was represented by attorney Steven Kim. He will return to court on Nov. 19.