The incident that occurred on September 28, 2019, left 21 kangaroos dead, with Nathan Sanger and his co-accused Ashley Sorenson both charged with torture, beat and cause death of animal.

Last year, Sanger, a 20-year-old from Numbugga, pleaded guilty and received a two-year intensive corrections order and was ordered to serve 500 hours of community service.

Sorenson, whose address was in Tura Beach at the time of the incident, initially pleaded not guilty.

However, when he appeared in Bega Local Court on Wednesday, March 11, he changed his plea to guilty after amending details in the case.

The 33-year-old was represented by Queanbeyan solicitor Megan North, who sought to amend court documents to remove the word "numerous" and replace it with "three" where it described the number of animals he killed.

Ms North said Sorenson did have past drug and alcohol dependencies, but they were now resolved and he had told her his mental health had improved over the years.

She applied for the matter to be adjourned for a full sentencing assessment report and be transferred to Queanbeyan.

Magistrate Doug Dick accepted the change of plea and the amendment to the court documents, then told Sorenson he would have to adjourn the matter for a report to consider the options for sentencing.

But, he told the accused, "I'm not promising you anything".

"Mr Sorenson... we have a thing which is a principle of law and it relates to parity," Magistrate Dick said.

"I've dealt with Mr Sanger and know what happened to him."

Parity means co-offenders should generally receive similar sentences, but Magistrate Dick said "it's not binding".

He said the Queanbeyan court "must be told" what happened to Sanger and the magistrate in that court would look at the number of kangaroos killed as well as Sorenson's criminal history, which was "far more extensive" than that of his co-accused.

"As much as I'd like to keep it here and perhaps keep my hand on it, that's not going to happen," Magistrate Dick said.

He said he would write a note for the magistrate in Queanbeyan that he had told Sorenson there would be "no promises".

Sorenson appeared in court in a white shirt and jeans with several supporters and when Magistrate Dick told him he was "not promising anything" he said he understood.

Bail was to continue and the matter was adjourned to Queanbeyan for sentencing on April 20.

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