MANCHESTER, N.H. — A New Hampshire man is set to go on trial on wiretapping charges after police say he secretly recorded conversations with Manchester police and school officials and posted the recordings on a blog affiliated with a website that claims to police the police.

Thirty-year-old Adam Mueller faces up to 21 years in prison if convicted of three felony counts of recording conversations without permission.

Police say the recordings were made in conjunction with an Oct. 3 incident in which a school security officer was videotaped forcibly handcuffing a student. Mueller posted tape recordings of conversations with Manchester High School West officials and Manchester Police Capt. Jonathan Hopkins on www.copblock.org.

Mueller was indicted in November on three counts of tape-recording the individuals without their permission. He is representing himself at trial.