In many common law jurisdictions, an indictable offence is an offence which can only be tried on an indictment after a preliminary hearing to determine whether there is a prima facie case to answer or by a grand jury. A similar concept in the United States is known as a felony, which for federal crimes, also requires an indictment. In Scotland, which is a hybrid common law jurisdiction, the procurator fiscal will commence solemn proceedings for serious crimes to be prosecuted on indictment before a jury.