A hearing has been set for 14 October by the Court of Justice of the European Union (CJEU) to determine whether or not Oriol Junqueras has parliamentary immunity as an MEP.
The court president has decided to fast-track the request through the accelerated procedure provided by law.
The Esquerra Republicana (ERC) party leader was elected as a Member of the European Parliament (MEP) in May, but was not permitted to leave prison in order to take the oath of office and officially take up his seat.
Junqueras argues that his election to the European chamber means he should be given parliamentary immunity, and therefore be freed from jail, where he is currently awaiting the verdict of the Catalan Trial.
Spain’s Supreme Court asked the European High Court at the beginning of July on the scope of the immunity of the former Catalan vice-president, a query that it made against the opinion of the prosecutor’s office and the law of the State.
The oral hearing will be held at the headquarters of the Court of Justice of the European Union, in Luxembourg.