The standard of proof refers to the level or degree of evidence required in a legal proceeding to establish the guilt, liability, or truth of an assertion. Full definition
However, the overall standard of proof in a civil case is relaxed, compared to that of criminal cases. (monseesmayer.com)
The high standard of proof required is reported to have the consequence that many indigenous peoples are unable to obtain recognition of their relationship with their traditional lands. (humanrights.gov.au)