Русско-англо-русский юридический словарь

The civil standard of proof is proof on a balance of probabilities. The criminal standard is proof beyond a reasonable doubt. This article deals with civil standards of proof. Saying something is proven on a balance of probabilities means that it is more likely than not to have occurred. It means that it is probable, i.e., the probability that some event happens is more than 50%. So mathematically proof on a balance of probabilities is 50.1% likelihood of something having occurred. (website of Bayda Disability Law Firm)