The man was charged with disorderly conduct in the incident.
A man not eligible for a public defender is accused of yelling and cursing at court clerks.
Charged is Albert Murray, 51, of Hackettstown.
Hackettstown police said the incident happened at 10:11 a.m. Wednesday at the town's municipal court. Officers found Murray shouting at the court window, police said.
Murray was charged with disorderly conduct and released pending a court appearance.
Pamela Sroka-Holzmann may be reached at pholzmann@lehighvalleylive.com. Follow her on Twitter @pamholzmann. Find lehighvalleylive.com on Facebook.