The general rule in Jewish law is that in criminal cases and in cases involving claims on property two witnesses are required in order to establish the facts of the case. Witnesses must be perfectly reliable persons; robbers, for example, are disqualified from acting as witnesses. Witnesses must not be related to the contestants in a case nor must they be related to one another. The disqualification of a witness on the grounds of close relationship applies even where the witness testifies against his relative.
Subjects: Law — Religion.