Requirement to hold a hearing
Brazil
Lei n. 9504 30/09/1997 (ElectionLaw)
Art. 96.
Paragraph 5 Once the complaint or claim is received, the Electoral Court shallimmediately notify the defendant or claimed party to present his/her defense,if desired, within forty-eight hours.
http://www.tse.jus.br/legislacao/codigo-eleitoral/lei-das-eleicoes/lei-das-eleicoes-lei-nb0-9.504-de-30-de-setembro-de-1997#art90-107