After halting its investigation for more than one year, the Corruption Eradication Commission (KPK) began questioning on Tuesday witnesses in a graft case implicating former health minister Siti Fadilah Supari, who was named a suspect in the case in April 2014.
Monday's questioning was the first move in the case since the KPK took it over from the National Police in March 2014.
KPK spokesman Priharsa Nugraha said that the witnesses interrogated in the case on Tuesday were Nadira Haifa, who is a private individual, and Rien Pramindari, who was a Health Ministry official in charge of the procurement of reserve medical equipment for use in extraordinary circumstances in 2005, which was allegedly rigged by Siti.
"Tuesday's questioning is meant to collect testimonies to complete the dossiers [of Siti] in the case," Priharsa said.
The National Police have accused Siti of abusing her budgetary power during her tenure as minister in the procurement of medical equipment worth Rp 15.5 billion (S$325 m) in 2005.
Siti was first named a suspect by the National Police on March 28, 2012.
One month after the KPK took over the case Siti was renamed a suspect in the case that caused Rp 6.1 billion in state losses.
The KPK said that it still needed to question more witnesses before bringing Siti in for questioning.
In 2012, the KPK questioned Siti several times in relation to another corruption case at the ministry implicating former director general of medical services Ratna Dewi Umar, who was found guilty and sentenced to five years in prison.