Islamabad , Pakistan ( CNN ) -- Former Pakistani President Pervez Musharraf failed to appear Tuesday at a court where he was due to be indicted in connection with the death of opposition leader Benazir Bhutto . Musharraf did n't travel to the hearing at an anti-terrorism court in Rawalpindi because intelligence services warned of credible threats against his life , said his lawyer Ahmed Raza Kasuri . Read more : Can Musharraf save U.S. from liability for drone attacks ? The Pakistani capital , Islamabad , which adjoins Rawalpindi , was put on high alert Sunday after intelligence reports suggested the possibility of a high-profile attack . The court has adjourned Musharraf 's case until August 20 , Kasuri said . Musharraf is not expected to be charged with murder , but over his alleged failure to provide adequate security for Bhutto , Kasuri said last week . Accusations over assassination . Bhutto , Pakistan 's first female prime minister , was assassinated in a gun-suicide attack in December 2007 , shortly after she came back to Pakistan from self-imposed exile to take part in the 2008 general elections . Musharraf was president at the time . Read more : The story of Pervez Musharraf . Musharraf 's government blamed former Pakistani Taliban leader Baitullah Mehsud for the assassination , saying he had paid a network of Islamist militants to carry out the killing . But Musharraf and his security forces have been accused of failing to protect Bhutto , a political rival . The former military ruler has denied having anything to do with Bhutto 's killing and his lawyers say the allegations against him are politically motivated . He plans to plead not guilty to the expected charges . A troubled return . After the general elections in 2008 where his party was trounced , Musharraf stepped down as the governing coalition began taking steps to impeach him . He then went into self-imposed exile . Earlier this year , he returned to Pakistan in an attempt to revive his political career . It did n't work . Instead , he 's become entangled in a thicket of court cases related to his time as the country 's top leader . He has been under house arrest since April .
Musharraf fails to appear in court to face charges in Benazir Bhutto murder case . Pakistan government says it will not allow Musharraf's return until he is tried for the killing of Bhutto. The case is adjourned until August 20 . Musharraf is accused of failing to provide adequate security for Bhutto in 2007 .