A judge ruled that two undercover FBI agents who poses as members of a far-right militia snared for plotting to kidnap Michigan Gov. Gretchen Whitmer will have to testify in court using their real names. 

Chief U.S. District Judge Robert Jonker said the two agents, who have only been known as 'Mark' and 'Red,' will have to make their real identities known after the trial begins next week at the U.S. District Court in Grand Rapids, Michigan, the Detroit Free Press reported. 

Jonker said it was to ensure militia members Adam Fox, 38, Daniel Harris, 24, Brandon Caserta, 33, and Barry Croft, 46, are given a fair trial for their alleged role in the 2020 plot orchestrated with five other members. 

In his decision, Jonker wrote: 'Making it crystal clear to the jury and the public that inside the courtroom, nothing is undercover and everything is out in the open will best ensure fairness during trial and eventual acceptance and respect for whatever the jury ultimately decides.'

'Mark' and 'Red' were among the agents who infiltrated the Wolverine Watchmen extremist group in a messy operation that saw some informants kicked off the case and others accused of misbehavior and inciting illegal activities within the militia.  

According to court documents, 'Mark' had posed as a local resident and was tasked with scouting the governor's summer home while 'Red' was introduced to the group by 'Mark' as a demolitions expert who could make bombs for the group.