Jakarta – Activists will use this week's passing of the third anniversary of the murder of human rights activist Munir Said Thalib to pressure the government to find those responsible for ordering the activist's death.

On Sunday, dozens of people grouped in the Solidarity Alliance for Munir and Democracy rallied in Central Jakarta to commemorate Munir's death on board a Garuda flight to the Netherlands on Sept. 7, 2004.

"Munir's struggle in the fight for human rights was rewarded with death, rather than the protection of the government," rally coordinator Sinnal Blegur said. "Up to now, the government has been unable to solve the case. So we should be questioning the government's commitment to protecting its own citizens."

Sinnal said Sunday's protest was only a start, with activists planning to hold a bigger rally on Friday to demand the government get serious about solving the case.

Sinnal said the government should reveal those truly responsible for Munir's murder, rather than just pointing the finger at Pollycarpus Budihari Priyanto, a Garuda pilot whose quashed conviction for the murder is currently the subject of a judicial review.

Munir died on board the Garuda Indonesia flight to Amsterdam after a stopover in Singapore. The Dutch police's initial investigation into the case found Munir had been poisoned with a massive dose of arsenic at some point during his journey.

After taking over the case, Indonesian police named off-duty pilot Polycarpus as suspect. The Supreme Court later quashed Pollycarpus' murder conviction but found him guilty of forging his letter of assignment as an aviation security officer.

The Attorney General's Office has since filed a case review aiming to overturn Pollycarpus' acquittal.

A number of witnesses in the case review have implicated the State Intelligence Agency (BIN) in the case. The agency has denied allegations it was involved in the murder.