David Hester-Bey can only enter the building to file papers in civil cases until an evidence hearing in October, reports the Daily News.
Court records say officers have escorted Hester-Bey around the building since the beginning of the year "because his inappropriate behavior toward judicial and court officials has escalated."
He allegedly tried to approach Judge Kiyo Matsumoto after telling an officer he had something to tell her and later trying to follow her into an elevator.
He's also accused of staring down the same judge during a proceeding, coming to court with knives in his bag and threatening a clerk.
He's denied all the allegations.