Bloggers Roy Ngerng, Han Hui Hui and 4 others to be charged with public nuisance on Monday

[UPDATED on 24 Oct 2014 at 8am: Adding details of protesters to be charged]

Roy Ngerng and Han Hui Hui will face public nuisance charges in court on Monday over their involvement in the "Return Our CPF" protest at Hong Lim Park late last month.

Ngerng confirmed this on Thursday night in a Facebook status, and Han said it in an email to the media showing a redacted photograph of part of a signed charge sheet.

Han's email also indicated that four others would be charged.

The charges will come exactly a month after the two bloggers led a group of protesters through Hong Lim Park, disrupting the performance of special needs children during a charity carnival organised by YMCA.

Han on Thursday also shared an email that showed part of a “conditional warning” from the police for committing a public nuisance, after being investigated for illegal assembly at Hong Lim Park.

The individuals face a fine of up to $1,000 if convicted for the public nuisance offence.

Han's warning, in turn, comes after her lawyer M Ravi asked for the National Parks Board to reconsider its ban on Han from holding events at the Speaker's Corner at Hong Lim Park.

"It is an indeterminate, wholly disproporationate and oppressive ban," Ravi said in a letter of demand to NParks, while formally requesting the ban to be lifted no later than 4pm on Friday.

He said Han would seek relief from Court if NParks did not comply with his request.

On Tuesday, the police and NParks revoked an approval for a protest that Han planned at the Hong Lim Park area on Saturday (25 Oct).

NParks said in a statement that it will not approve further applications and will cancel existing approvals made by individuals being investigated for the 27 Sept "Return Our CPF" event organised by Han until their cases are concluded.

Ravi asserted that the revocation of the permit and the ban on Han over future events breached his client's rights to freedom of speech and assembly under Article 14 of the Constitution.

"The purpose of Speaker's Corner is to provide an arena in which free speech is allowed to be exercised, and it appears wholly out of keeping with this purpose... to deny and place a ban on free speech in the very place where it is supposed to be allowed," he wrote.

He noted that Han's assisting the police in investigations "does not constitute nor can it be construed as an implication, assertion or proof of guilt of any offence".

He also said it does not violate any law or the terms of approval for the "Return Our CPF" event.

Han and political activist and blogger Roy Ngerng were called up by the Singapore police for questioning over their participation in the September 27 protest that disrupted a YMCA charity carnival held at the opposite end of Hong Lim Park.

Ngerng shared in a Facebook post on Monday night that he had been asked to assist police in investigations into whether the protest had been an illegal assembly.

Ngerng had led the “Return Our CPF” protest together with blogger Han Hui Hui, who had already been questioned by the police for seven hours on 10 Oct.

The protesters were criticised online for allegedly scaring special needs children who were performing on stage at the carnival at the time.

Seven other protesters were questioned by police about the protest, but no arrests have been made.