A high school math teacher accused of putting his hand inside a female student’s waistband while they were alone inside of a classroom has a history of alleged inappropriate behavior at other Connecticut school districts, according to court documents.
Darien High School teacher Sean Boardman, 59, of Westbrook, was arrested on January 30 in connection with the alleged incident involving the student, which was reported to have occurred while he was tutoring her in November, according to authorities, WFSB reported.
He is charged with risk of injury to a child, court records viewed by Us Weekly show.
Court records did indicate whether Boardman had retained legal representation as of the afternoon of Tuesday, February 10.
According to the arrest warrant obtained by WTNH, a female student told investigators that Boardman inappropriately touched her on November 21, when she met with him before school for math support.
She found the classroom’s blinds were fully closed when she arrived, the warrant says. After she went inside, the classroom door allegedly stayed closed, WTNH reported, citing the filing.
The student said that while alone with Boardman in the classroom, he touched and moved her necklace, as well as her hair, according to the arrest warrant viewed by WTNH. Then, when he allegedly asked her about her previous hip injury, she accused him of placing his hand inside her waistband, the warrant says.
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Darien Public Schools Superintendent Dr. Eric Byrne told WFSB that Boardman has been put on leave.
“On November 21, 2025, a serious concern involving one of our DHS teachers was brought to the attention of our administration,” Byrne said in a statement to the TV station. “We immediately took action, reported the concern to the appropriate authorities, and placed the teacher on leave pending an investigation.”
According to the arrest warrant, there have been additional inappropriate incidents involving Boardman at other Connecticut high schools dating back to December 2019, WFSB reported. The warrant reveals multiple complaints have been made against him.
In December 2019, when Boardman worked for Nathan Hale Ray High School in Moodus, the school’s principal found him alone with a female student on the floor of a locked classroom after school had ended, according to the arrest warrant viewed by the TV station.
The principal noticed music was playing inside the dark room, and that the student was sitting on a towel, the warrant says. Both the student and Boardman were described as sweating, WFSB reported.
The Department of Children and Families was notified of the alleged incident, but Boardman was never arrested, according to the TV station.
The agency also investigated allegations made against him by students and adults in April 2022, when he coached at Bunnell High School in Stratford, according to the arrest warrant, CT Insider reported.
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He put in his resignation from the school in May 2022, then was hired at Darien High School in June 2022, according to the outlet.
The Darien Police Department did not immediately respond to an inquiry from Us on February 10.
Boardman is due in court for an arraignment on February 13, records show.
