Typical standards for these sorts of things are a presumption of innocence until shown otherwise, which can be to varying degrees of certainty: preponderance of

Typical standards for these sorts of things are a presumption of innocence until shown otherwise, which can be to varying degrees of certainty: preponderance of evidence (i.e. "more likely true than not"), clear and convincing evidence ("quite likely true"), or beyond a reasonable doubt. I would hope that at least a preponderance of evidence standard is used, beyond just the leveling of an accusation. Considering the consequences for the accused, clear and convincing is probably a better standard.