In prosecutions for many drug offences, once the prosecutionThe party (q.v.) presenting evidence against the person accused of committing a crime. More has presented certain matters of proof to establish a prima facie (q.v.) case, the onus of proof (q.v.) rests on the accused, who must prove innocence on the balance of probabilitiesThe standard of proof (q.v.) required in civil law (q.v.) cases, i.e. it is more probable than not that what the person says happened is true. (In criminal cases, the standard is proof beyond reasonable doubt.) More (q.v.).