He was also a member of the ecclesiastical commission as early as 1567, and on 28 June of that year was appointed visitor of the churches, city, and diocese of Norwich.
[3] Drury was one of the civilians consulted by Elizabeth in 1571 on the important points of international law raised by the intrigues of John Lesley, the Bishop of Ross on behalf of Mary Stuart.
[3] The civilians answered the first question in a sense adverse to the ambassador, and their decision was held at the time conclusive, and acted on accordingly; but, though much discussed since, it has not been generally approved by publicists, or frequently followed in practice by statesmen.
[4] In June 1571, in his capacity as ambassador, he was sent to Scotland to speak terms with Regent Morton, who represented Mary, Queen of Scots.
[8] In 1584 he was consulted as to the best mode of defending the revenues of the church against an apprehended confiscation by the crown under cover of a writ of melius inquirendum.
An opinion drawn up by him on this occasion, in which he advises the collection of evidence to prove that "the tenth part of the fruits of the land is not possessed by the clergy", and certain propositions in the nature of argument to strengthen the case, are preserved in Strype's Annals.