First Minister suggested Parliament could use its powers to ensure he gives evidence after Holyrood declined to publish his submission to MSPs.However, Sturgeon also refused on three occasions to say whether she would resign if she was found to have breached ethics rules over the Salmond scandal.A special Holyrood committee is investigating the way the Scottish Government unlawfully handled sexual misconduct complaints against the former SNP first minister.The fiasco, which cost the taxpayer