He served King Charles I of England as Attorney General, from 1625. He owed his appointment to the influence of the Duke of Buckingham. Despite a reputation as a shadowy, opaque figure, records show him able to argue shrewdly and independently in order to reduce problems for the Crown.Thomas Cogswell, ‘In the Power of the State’: Mr Anys's Project and the Tobacco Colonies, 1626–1628, The English Historical Review 2008 CXXIII (500):35-64; .