What is necessary to convict someone of treason?

1. there must be 2 or more witnesses

2. If caught try to over throw or kill a ruler / any act of betrayal will be convicted as treason. Mutiny

To convict someone of treason, the prosecutor must prove the offense of attempting by overt acts to overthrow the government of the state. The offender owes to killing or injuring the sovereign. There must be at least 2 witnesses.