The army-backed caretaker government Wednesday filed two more corruption cases against Benazir Bhutto, intensifying the legal pressure on the ousted prime minister a week before national elections.

Wednesday's action brought to six the number of cases before special one-judge tribunals set up to try corruption charges against the 37-year-old former prime minister, her husband and key members of her ousted government.Justice Mohammad Amir Malik set a hearing for Saturday to determine whether Bhutto should stand trial.

The latest charges say Bhutto used hundreds of millions of dollars in secret service funds to buy political favors and used government and military aircraft to transport supporters in Parliament during a no-confidence vote last year.

Some legal experts doubt that any of the cases against Bhutto will be completed before next Wednesday's parliamentary election.

They say Pakistan's judicial process is slow and cumbersome and that the courts seem reluctant to step up the process for fear that Western countries, especially the United States, will cut off millions of dollars in economic and military aid if Bhutto is disqualified.