In 1988, there was a plebiscite in Chile. The people were asked whether Pinochet should rule for another eight and a half years. About 56% of the people did not want that. Pinochet, under pressure from other countries was forced to accept the results, and stepped down from power in 1990. Patricio Aylwin became the next president. Pinochet kept his responsibilities as head of the military until 1998. After this, he became a senator for life, but had to leave senate in 2002. He was not arrested because the Supreme Court of Chile said he suffered from dementia. In May 2004, judges said that was not true. On December 13 he was placed under house arrest. Judges in Spain tried to put him on trial for the many crimes against the human rights he committed while leader of Chile.