The group’s chairman, Ng Yap Hwa, claimed that several participants in the “walk for justice” to Parliament were pushed to the ground by the police, including the late Beng Hock’s sister, Lee Lan.

Ng also claimed that one woman – a member of the demonstration’s organising committee – was grabbed at the collar by a policeman, breaking her necklace and leaving red marks on her neck.

“We will send a bill to the unity government demanding that home minister Saifuddin Nasution Ismail pay compensation for the damage of the necklace and medical treatment for the woman,” he said in a statement.

He accused the Pakatan Harapan-led government of condoning violence against participants of a peaceful rally, saying this was a violation of their constitutional right to assemble peacefully.

He said the group may also take legal action against the policemen involved in the incident.

This morning, Lee Lan, members of the association and other supporters arrived at Parliament following a three-day 96km “walk for justice”.

As the group approached Parliament, police tried to prevent them from entering the complex, during which Lee Lan fell to the ground and was apparently hurt.

After a brief stand-off, the group was able to submit the memorandum but could not enter the building as originally planned.

Prime Minister Anwar Ibrahim later said he was aware of the incident and promised to meet Beng Hock’s family soon and review their memorandum.

In 2009, Beng Hock, the former aide to then Selangor executive councillor Ean Yong Hian Wah, was found dead on the fifth floor of Plaza Masalam in Shah Alam, hours after he had arrived for questioning on the 14th floor of the Selangor MACC headquarters.

A coroner’s inquest in 2011 delivered an open verdict and his family subsequently filed an appeal against the findings. Three years later, the Court of Appeal set aside the open verdict and ruled that Beng Hock’s death was caused by multiple injuries as a result of unlawful acts by unknown persons.