The English solution to this problem was to condition the holding of office upon good behavior, as enforced by the people through the writ of scire facias. Although it was technically a writ of the sovereign, this power concerned only the interests of his subjects; as the King exercised it only as parens patriae, he was bound by law to allow the use of it to any subject interested. Sir William Blackstone explains in his landmark treatise on the common law, "Commentaries on the Laws of England":