text: Batasuna's political status was controversial. It was considered to be the political wing of ETA. Moreover, after the investigations on the nature of the relationship between Batasuna and ETA by Judge Baltasar Garzón, who suspended the activities of the political organisation and ordered police to shut down its headquarters, the Supreme Court of Spain finally declared Batasuna illegal on 18 March 2003. The court considered proven that Batasuna had links with ETA and that it constituted in fact part of ETA's structure. In 2003, the Constitutional Tribunal upheld the legality of the law.
  However, the party itself denied being the political wing of ETA, although double membership – simultaneous or alternative – between Batasuna and ETA was often recorded, such as with the cases of prominent Batasuna leaders like Josu Urrutikoetxea, Arnaldo Otegi, Jon Salaberria and others.
  The Spanish Cortes (the Spanish Parliament) began the process of declaring the party illegal in August 2002 by issuing a bill entitled the Ley de Partidos Políticos which bars political parties that use violence to achieve political goals, promote hatred against different groups or seek to destroy the democratic system. The bill passed the Cortes with a 304 to 16 vote. Many within the Basque nationalistic movement strongly disputed the Law, which they considered too draconian or even unconstitutional; alleging that any party could be made illegal almost by choice, simply for not clearly stating their opposition to an attack.