The labor union representing fired Hooksett police officer Jason Defina has filed an unfair labor practice complaint with the state Public Employee Labor Relations Board.

The complaint, filed Oct. 16, accuses Hooksett Police Chief Stephen Agrafiotis and the Hooksett Police Commission of terminating Defina without just cause and without allowing Defina a proper hearing to discuss his alleged actions that led to his termination.

The complaint also accuses the Police Commission of violating the law by appointing a replacement board of former commission members to oversee a grievance that Defina filed in late September.

Thomas Noonan, an official from Teamsters Union Local 633, which filed the complaint, said the Hooksett Town Council would have been the proper board to decide who the replacement commission should be.

“We think the complaint is without merit and will vigorously defend against it,” said James Higgins, the commission’s attorney.

Defina’s attorney, William Cahill, said Defina was fired because Commission Chairman David Gagnon said Defina had not cooperated and properly participated in the field training program, which he was ordered to undergo after a suspension.

“We strongly disagree with Commissioner Gagnon’s assertion that there was a lack of cooperation on officer Defina’s part in the field training program,” Cahill said.