The Constitution Protection Club alleges the judges violated the law and "ruined democracy".

The move follows the landmark verdict on May 8 when the Constitution Court nullified the April 2 election and ordered a new poll.

Chairman of the group Chucheep Chiwasuthi gave the complaint against the eight judges to Police Commissioner General Kowit Wattana.

He claimed the Constitution Court had no authority to nullify the election. Under the law only the Election Commission had the authority to rule on cases relevant to elections, he claimed.

Eight of 14 judges in the top court ruled that the EC's management of the April 2 ballot was unconstitutional. The judges were Parn Jantraparn, Jira Boonpojanasoontorn, Nopadol Hengjaroen, Mongkol Saratun, Saowanee Asawaroj, Apai Chandanachulaka, Preecha Chalermvanich and Ura Wang-ormklang.

Chucheep also asked for the prosecution of Supreme Court President Charnchai Likitjittha. He claimed the Supreme Court violated the Constitution by "refusing to do its duty".

The petition refers to the court decision, backed by 72 of its 82 judges, to reject Senate Speaker Suchon Chaleekrua's request to get the court to assist in selecting candidates to fill the two vacant seats at the Election Commission.

The judges ruled the three remaining EC members had lost legitimacy to stay in their posts after the Administrative Court and Constitution Court found the April 2 poll was flawed.

Judges urged the three Election Commissioners to resign, to allow the courts to select a more independent body to oversee a new election.

But the EC trio have so far refused to step down.

Constitution Court secretary general Paiboon Warahapaitoon said late yesterday the court would not respond to the group's claims, saying its ruling was irreversible.