Could you please clarify what the term "onus" refers to in the context of "What is the onus on the accused?"? Generally speaking, in legal proceedings, the "onus" refers to the responsibility or burden of proof. So, the question is asking about the responsibility or burden that falls on the accused individual in a legal case. In criminal proceedings, for example, the burden of proof usually lies with the prosecution to prove beyond a reasonable doubt that the accused committed the crime. However, in some specific legal contexts or circumstances, the accused may have a certain burden of proof or responsibility to provide evidence or explain certain facts. Could you elaborate on the specific legal context you have in mind, so I can provide a more accurate answer?