Русско-англо-русский юридический словарь

The burden of proof (Latin: onus probandi) is the imperative on a party in a trial to produce the evidence that will shift the conclusion away from the default position to one's own position. (Wikipedia)

Burden of Proof. The government has the burden of proving the guilt of the defendant beyond a reasonable doubt, and this burden remains on the government ... (Western District of Wisconsin)