R (Surat Singh) v Stratford Magistrates Court [2007] EWHC 1582 (Admin)

(1) The common law defence of insanity is available in the magistrates' court and prevents conviction (though does not necessarily lead to acquittal); (2) section 37(3) allows the magistrate, if satisfied that the accused did the act or made the omission charged, to abstain from convicting or acquitting or considering the issue of insanity, and instead to make a hospital or guardianship order.