"The work of the assembly should not be undermined by negative comments from members who are trying to make political points", warned the Counsel General on 28 November 2012.
Theodore Huckle QC stressed that the work of drafters and lawyers in the Welsh government is not a political matter and should be support by assembly members from all parties.
He made the comments whilst answering a question from Plaid Cymru AM Simon Thomas on the recent Supreme Court ruling on the Welsh government's consideration on the legislative competence of assembly bills.
Mr Huckle told AMs that he had listened with irritation to observations in the run up to the hearing that the Welsh government should have listened to warning from the Wales Office.
It had also angered him that there was a general assumption that the government in London was correct on the matter.
Winning in the Supreme Court had therefore given him "particular pleasure"
He also answered a question on a separate Welsh legal jurisdiction.