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Thomas Bonham v College of Physicians, commonly known as Dr. Bonham's Case or simply Bonham's Case, was a case decided in 1610 by the Court of Common Pleas in England, under Sir Edward Coke, the court's Chief Justice, in which it was ruled that Dr. Bonham had been wrongfully imprisoned by the College of Physicians for practising medicine without a licence. Dr. Bonham's attorneys had argued that imprisonment was reserved for malpractice not illicit practice, with Coke agreeing in the majority opinion.

The case is notable because Coke argued in the decision's rationale that "in many cases, the common law will control Acts of Parliament", the act of Parliament in question being the College of Physicians Act 1553 (1 Mar. Sess. 2. c. 9), which gave the college the right to imprison. The meaning of this phrase has been disputed over the years. According to one interpretation, Coke intended the kind of judicial review that would later develop in the United States, but other scholars believe that Coke meant only to construe a statute, not to challenge parliamentary sovereignty. If Coke intended the former, he may have later changed his view. The statement by Coke is sometimes considered to be an obiter dictum (a statement made 'by the way'), rather than part of the ratio decidendi (rationale for the decision) of the case.

After an initial period during which Coke's controversial view enjoyed some support but no statutes were declared void, Bonham's Case was thrown aside as a precedent, in favour of the growing doctrine of parliamentary sovereignty. William Blackstone, one of the most prominent supporters of the doctrine, argued that Parliament is the sovereign lawmaker, preventing the common law courts from throwing aside or reviewing statutes in the fashion that Coke had suggested. Parliamentary sovereignty is now the accepted judicial doctrine in the legal system of England and Wales. (Full article...)