lamford, on 2019-March-21, 05:47, said:
And, for completeness, everyone who has been banned from online bridge has been convicted based solely on their actions on hands. There is no video evidence there!
In some cases there may be additional factors, like coming from the same IP address.
But there's a difference between concluding that someone cheated on the current hand because they have a history of cheating and this hand is suspicous, and deciding that someone is a cheater based on the statistics.