The IRA was a proscribed organization under the terms of the Offences Against the State Acts passed between 1939 and 1998 in the Republic of Ireland and under equivalent anti-terrorist legislation in the United Kingdom, making membership of it a criminal offence. In the Republic, trials for membership take place in the Special Criminal Court (where three judges hear cases without a jury, on the evidence of a Garda superintendent or higher rank) and carries a maximum penalty of five years' imprisonment.