Bersih 4.0 rally participants insist on assembling in public areas in solidarity of seeking truth about their basic rights should be aware that their actions are under the scrutiny of law.

Former inspector-general, Tan Sri Musa Hassan said that although the law grants permission for a peaceful assembly, police officials’ decision should be adhered to as they are in charge of safety and national security.

"We have rules and laws. Although peaceful gatherings are allowed, but those involved should follow instructions apart from respecting the duty of police to protect everyone, including those who are demonstrating.

"Bersih 4 is prohibited, and taking part is essentially breaking the law even on the grounds of basic human rights," he said when contacted today.

Musa was commenting on the rally scheduled today and tomorrow.

Previously, Kuala Lumpur police chief Datuk Tajuddin Md Isa said the Bersih 4 demonstrators would face legal action under the Peaceful Assembly Act 2012 if they still insist on gathering despite not given the permit to do so.

However, according to Tajuddin, people are allowed to present at Dataran Merdeka for the National Day parade.

Musa also stressed that the police can take action against demonstrators who break the law.

"If the law is not complied with, the police can take action," he said.

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Previously, Deputy Prime Minister, Datuk Seri Dr Ahmad Zahid Hamidi has banned the use of yellow accompanied with the word Bersih 4 and any other related publications based on the rally.

Ahmad Zahid who is also Home Minister added that the ban was in accordance with the Printing Presses and Publications (Control of Undesirable Publications ) ( No. 22 ) , 2015 and came into effect on Friday .

The Chairman of the National Young Lawyers Committee, Syahredzan Johan on his Facebook wrote that those detained by police for dressing in yellow can dispute if Bersih 4 slogan is not printed on their attires.