The investigation of facts should not be left to individual citizens, such as McCloskey. There are other solutions to seeing to it that no one who is innocent gets incarcerated. An agency can be created within the administrative context of the criminal courts to investigate facts as they pertain to an accusation of guilt before any court appearance of the accused. Such fact-finding would also eliminate the often ridiculous game-playing by the prosecution and the defense.
A more immediate solution would be to fire any civil servant who perjures himself or who is a party to suppressing or altering evidence in favor of a defendant. That individual should also be subjected to criminal and civil liability.