 In 1638, he was a commissioner to take subscriptions to the confession of faith of 1580.He was employed in 1639 in regulating the fees of writers to the signet and others, and parliament adopted the scales which he laid down.On 13 November 1641, Fletcher, with others, was appointed to his judgeship afresh by the king and parliament, and his appointment was objected to by the laird of Moncrieff, upon the ground that he was incapacitated by having purchased lands the subject of litigation before him.