This decision is a test of the independence of Malaysias political institutions and the rule of law in a country that has seen this fraying in recent months, said Bridget Welsh, honorary research associate at University of Nottingham Malaysia. Muhyiddin was fired as Najib's deputy in 2016 for speaking out on the 1MDB scandal but is now beholden to Najibs party for its support. Najibs party is the biggest bloc in the current Malay nationalist alliance, which was formed in March after a political coup by Muhyiddins party toppled the former reformist government. Another senior member of Najib's party was also freed after prosecutors dropped 46 corruption charges against him. Najib's wife and several officials from his party and previous government have been charged with graft as well.

Former Malaysian Prime Minister Najib Razak wearing a face mask arrives at court house in Kuala Lumpur, Malaysia, Thursday, June 4, 2020. Closing arguments are expected in the first corruption trial of him linked to the multibillion-dollar looting of the 1MDB state investment fund. The High Court set July 28 to deliver its verdict that will be closely watched as Najibs Malay political party is reviving its fortunes. Prosecutors argued Najib was the real power behind 1MDB and SRC as premier and finance minister at the time. Sithambaram said the change in Malaysia's government didn't affect the prosecution's case and that there was no order for them to back off against Najib.