Febriamy Hutapea – The House of Representatives' proposed investigation into the flawed voters list used for the legislative elections may backfire on the parties that supported the inquiry, an analyst said on Thursday.

Irman Putra Sidin, an administrative law expert, said that if the House could be professional in investigating the voters list, it could reveal systemic manipulation of the list by the same parties that initiated and supported the inquiry.

The House voted on Tuesday to investigate the government's policy regarding the list, which allegedly prevented millions of people from voting.

The proposal was initiated by the Indonesian Democratic Party of Struggle (PDI-P) but dozens of lawmakers from the Democratic Party's coalition supported the inquiry into the handling of the voters list, including lawmakers from the United Development Party (PPP), the National Mandate Party (PAN) and the National Awakening Party (PKB).

President Susilo Bambang Yudhoyono's Democratic Party voted against the investigation, with its House faction arguing that the General Elections Commission (KPU) was to blame for the list's errors, rather than government policy.

Irman said the investigation could reveal the involvement of various party members at the provincial, district or municipal levels in manipulating the list to their advantage.

He said that the investigation into the flawed voters list was likely to be used by parties as a political bargaining tool in the lead-up to the July 8 presidential election.

"The House's move to investigate the case is admirable, but it might be used by certain presidential candidates to gain power," Irman said. He said that the House should be transparent about its progress in investigating the voters list complaints.

Separately, House Speaker Agung Laksono said that he expected the investigation into the voters list to be completed before the House's current sitting period ended in September. "I hope that it can be finished before we dissolve," Agung said in the House.