Onus probandis is a term used in legal proceedings to denote the burden of proof that lies with the complainant or the prosecutor. Synonyms for onus probandis include burden of proof, burden of persuasion, burden of establishing, duty to prove, responsibility to demonstrate, obligation to provide evidence, and the task of demonstrating. In a legal context, the onus of proof lies with the person bringing the legal action and the burden is on them to prove their case beyond reasonable doubt. The synonyms for onus probandis help to highlight the importance of establishing the evidence needed to support a legal claim or argument and to ensure that justice is served.