This Practice Note explains how to appeal to the Crown Court against a criminal conviction in the magistrates’ court pursuant to section 108 of the Magistrates' Courts Act 1980 (MCA 1980). It covers the statutory basis for appealing a conviction, appeals against conviction following committal for sentence to the Crown Court, the procedure for appealing from the magistrates’ court (set out in Criminal Procedure Rules 2025 (CrimPR 2025), SI 2025/909, Pt 34) and the appeal hearing in the Crown Court.