From the decision of the Court of Appeal – Criminal Division, a final appeal lies to the House of Lords, as in civil cases.
Appeal to the House of Lords in criminal cases, however, lies only if the lower court provides a certificate (which is not required in civil cases) to the effect that a point of law of general public importance is involved and that the point ought to be considered by the House of Lords.
It sometimes happens that the Court of Appeal indicated that a point of law of general public importance is involved, but nevertheless refuses leave to appeal to the House of Lords.
In such circumstances, it is for the House of Lords itself to decide whether the appeal will be heard. In addition to the defendant having an appeal to the House of Lords, subject to the conditions just mentioned, the prosecution also has a right of appeal, although it has no right of appeal from the Crown Court to the Court of Appeal.
Cities and towns, known as court centres, in which the High Court (for civil cases) and the Crown Court (for criminal cases) sit are divided into three tiers:

-There are 24 first tier centres in which civil and criminal cases are dealt with by High Court judges and circuit judges.
-There are 19 second tier centres where criminal cases only are dealt with by High Court judges and circuit judges.
-There are 46 third tier centres where the (comparatively) less serious criminal cases are dealt with by circuit judges.

See also:
House of Lords
High Court Judges
Lords Justices of Appeal