A Claremont Middle School teacher arrested for stalking a student was fired from SAU 6, and police continue to investigate her alleged behavior.

Erin Mullen, 38, was arrested Wednesday for allegedly violating a court order to stay away from the middle school student, according to Claremont Police Chief Brent Wilmot. 

“She was served with the restraining order on Wednesday at the end of the school day, and within an hour, a police officer found her at the Claremont Community Center, and she was in contact with the student she was not allowed to have contact with,” Wilmot told NHJournal.

A parent of a middle school child recently went to the police to report Mullen’s odd and alarming behavior with their child. Soon after there was the restraining order from the court barring her from interacting with the student.

The arrest came within an hour of police serving the restraining order on the teacher. Mullen was held in jail overnight Wednesday and released on cash bail the following day, according to Wilmot. 

Wilmot said police have an open investigation into Mullen, which preceded Wednesday’s arrest. The arrest is not stopping that inquiry, Wilmot said.

“This is not the end of the investigation,” Wilmot said.

He could not say what the investigation is focusing on or what possible charges, if any, could come as a result. 

SAU 6 Superintendent Chris Pratt said Mullen was immediately placed on paid leave as soon as he became aware of her arrest on Wednesday. Shortly after, Pratt said Mullen was fired. Pratt said in a statement released Monday the district continues to work with police as more about Mullen and her behavior is being learned.

“Please know we are working closely with law enforcement and relevant authorities to ensure a thorough investigation is conducted,” Pratt said.

Mullen’s name does not appear in the New Hampshire database of teacher certifications. However, it appears her last name may have changed since the most recent certification, in which case she has been a teacher in good standing since at least 2023. Pratt plans to contact the New Hampshire Department of Education to report Mullen’s arrest. At that point, her state certification to be a teacher could be suspended or revoked. 

The story breaks as the New Hampshire legislature tries to pass a parental rights bill that was blocked by the unanimous opposition of Democrats in the legislature. The bill would force schools to end policies that allow teachers to keep secrets from parents about their children’s behavior at school — in particular, behavior related to sex and gender.

Last year, the Department of Education placed 13 certified teachers on the suspended or revoked list. The offenses on the 2024 list range from code of conduct violations to criminal charges. The list has not been updated to reflect any actions in 2025 as of Monday. On the 2024 list is Stacey Lancaster, the Manchester NJROTC teacher busted by federal agents for child sex trafficking. 

Lancaster allegedly negotiated with an online pimp to hire a child for sex while Lancaster was at work. Lancaster was, in fact, communicating with an undercover federal informant, according to court records. Lancaster has pleaded guilty. His case is pending trial. 

State Sen. Timothy Lang (R-Sanbornton) is a sponsor of the parents’ rights legislation, which is expected clear the Senate.

“Whenever we talk about the Parental Bill of Rights, people tend to only focus on the student-teacher relationship,” Lang told NHJournal. “However, the most important relationship is the parent-teacher relationship and the trust parents give to teachers that cannot, and should not, be eroded, but instead strengthened.