I have heard a similar arguement applied to police qualification shoots many times, but I have not ever heard of high or low scores being used in court 'against' the shooter either criminal or civil court procedings. I know the questions of training standards and verifying a shooter was up to date on those standards comes up alot in those cases, but never heard of scoring on paper targets coming into play.
That's not to say it hasn't, can't or won't come into play in court; it's just that I've not heard a confirmed case of it happening.
That's not to say it hasn't, can't or won't come into play in court; it's just that I've not heard a confirmed case of it happening.