Perjury, as a Federal crime, is defined under 18 USC § 1621 [1], which, to my reading, is silent about whether its commission results in a miscarriage of justice or not. It describes the elements of the crime as: an oath, an intent, a falsehood, and the materiality of that falsehood.
Not to disparage that august institution, but I think something more authoritative than a Wikipedia citation is probably warranted to establish whether the result of an action is necessary for that action to be criminal, instead of the usual Model Penal Code standard of mens rea coupled with actus reus.
> Perjury, as a Federal crime, is defined under 18 USC § 1621 [1], which, to my reading, is silent about whether the commission of perjury results in a miscarriage of justice or not.
So it seems. In researching this, I see that the "miscarriage of justice" issue has two effects -- it often determines whether a case of perjury is pursued at all, and it affects the nature of the punishment (the sentencing phase). But it's not part of the formal definition that might lead to a determination of guilt. So I was wrong to state it the way I did earlier.
The "miscarriage of justice" issue is important, but it's not part of the definition of perjury -- it only affects whether a case is pursued by a prosecutor, and it may then influence the punishment.
Not to disparage that august institution, but I think something more authoritative than a Wikipedia citation is probably warranted to establish whether the result of an action is necessary for that action to be criminal, instead of the usual Model Penal Code standard of mens rea coupled with actus reus.
EDIT: Once again, IANAL. Also, phrasing.
[1] http://www.law.cornell.edu/uscode/text/18/1621