of justice. Sub-section (4) of Section 439 forbids a High Court from converting a finding of acquittal into one of conviction and that makes it all the more incumbent on the High Court to see that it does not convert the finding of acquittal into one of conviction by the indirect method of ordering retrial, when it cannot itself directly convert a finding of acquittal into a finding of conviction. This places limitations on the power of the High Court to set aside a finding of acquittal in revision and it is only in exceptional cases that this power should be exercised. It is not possible to lay down the criteria for determining such exceptional cases which would cover all contingencies. We may however indicate some cases of this kind, which would in our opinion justify the High Court in interfering with a finding of acquittal in revision. These cases may be: where the trial court has no jurisdiction to try the case but has still acquitted the accused, or where the trial court has wrongly shut out evidence which the prosecution wished to produce, or where the appeal court has wrongly held evidence which was admitted by the trial court to be inadmissible, or where material evidence has been overlooked either by the trial court or by the appeal court, or where the acquittal is based on a compounding of the offence, which is invalid under the law. These and other cases of similar nature can properly be held to be cases of exceptional nature, where the High Court can justifiably interfere with an order of acquittal; and in such a case it is obvious that it cannot be said that the High Court was doing indirectly what it could not do directly in view of the provisions of Section 439(4). We have therefore to see whether the order of the High Court setting aside the order of acquittal in this case can be upheld on these principles.