"Our members only took actions that disrupted the courts as a last resort, and it is both notable and significant that during this time their right to take those actions was supported by the Employment Court," Barclay said.
The Employment Court was called on to determine an injunction application by the ministry to stop the short-notice "lightning strikes" because of safety concerns.
The court dismissed the application.
Security fears also were raised by New Zealand Law Society president Kathryn Beck and New Zealand Bar Association (NZBA) vice-president Jonathan Eaton QC after a brawl in a Christchurch courtroom.
The deadlock was initially broken after a day of Employment Court-ordered negotiations late last month.
New collective agreements have also been reached this year at Inland Revenue, the Ministry of Business, Innovation and Employment, the Department of Corrections, the Department of Internal Affairs, Statistics New Zealand, Parliamentary Service, the Ministry of Culture and Heritage, Land Information New Zealand, Te Puni Kokiri, and, earlier this week, the Ministry of Social Development.
The Ministry of Justice was the lowest payer in the public service sector for 2017 and 2018, Barclay said, adding the PSA will push on with provisions supporting gender pay equality.