MANCHESTER, N.H. (AP) -- Police in Manchester, N.H., have determined that an officer did not use excessive force when arresting a high school student earlier this month.

The confrontation between Detective Darren Murphy and 17-year-old Frank Harrington at Manchester West High School was caught on video by another student.

Harrington's mother filed a complaint with police alleging Murphy used excessive force.

Harrington says he took his sister's bag as a prank, but the assistant principal contacted Murphy, the school resource officer.

WMUR-TV reports Murphy said in an affidavit that Harrington became "loud and disorderly" and he wouldn't stop "yelling and swearing."

The school is also investigating.

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