European Convention Act (Cap. 319), article 23

23. Secondly, the article applies only where the person’s conviction has been reversed or he has been pardoned, in either case on the ground that a new or newly discovered fact shows conclusively that there has been a miscarriage of justice - that is, some serious failure in the judicial process involving grave prejudice to the convicted person. Therefore, there is no requirement under the article to pay compensation if the conviction has been reversed or a pardon has been granted on some other ground. Nor does the article seek to lay down any rules as to the nature of the procedure to be applied to establish a miscarriage of justice. This is a matter for the domestic law or practice of the state concerned. The words "or he has been pardoned" have been included because under some systems of law pardon, rather than legal proceedings leading to the reversal of a conviction, may in certain cases be the appropriate remedy after there has been a final decision.