SINGAPORE: There was "no breach of security measures" by the Bishan-Toa Payoh Town Council in relation to the vandalism case in Toa Payoh on Wednesday.
Coordinating Chairman of the People's Action Party (PAP) Town Councils, Dr Teo Ho Pin, said this on Thursday in response to queries by Channel NewsAsia.
Officers from the Criminal Investigation Department (CID) were seen combing Block 85A Toa Payoh Lorong 4, a day after the vandalism took place.
The roof level at that block of flats was painted with graffiti containing vulgarities seemingly directed at the ruling party.
This was possibly the second time unauthorised persons have managed to get onto the rooftop of an HDB flat.
In 2011, a foreign domestic worker's body was found in a rooftop water tank in Sembawang.
Dr Teo stressed that the PAP town councils take a serious view of the security and safety of roofs and water tanks at HDB blocks.
He said that over the last three years, the town councils have set up a security protocol on rooftop access.
Dr Teo said: "The town councils have set up three lines of defence to make sure that (only) authorised personnel can go up to the rooftop of our HDB flats.
"So we have, first of all, secured locks to make sure that all the trap doors and all the doors are properly locked using a very robust lock system.
"We also make sure that our water tanks are all with brackets -- they are all bolted down to make sure that nobody can vandalise (them).
"At the same time, we have an authorised access system where only authorised persons can go up the roof."
The town councils believe the present security system is adequate to prevent any unauthorised access to the roofs. However, they will need to evaluate if the breach is caused by other factors.
Channel NewsAsia has been trying to figure out how the vandals could have reached the rooftop without using the trap door.
Looking at the place, one can see a small opening which leads to the roof. There are also stains on the walls, which could mean that the vandals could have placed a ladder against the walls to get to the opening.
A ladder was found beneath the access hatch to the rooftop.
Residents have also suggested the use of close-circuit television (CCTV) cameras to deter unauthorised entry to the roof.
Police have plans to install CCTV cameras at 10,000 HDB blocks and multi-storey carparks by the fourth quarter of 2016.
The Bishan-Toa Payoh Town Council said it has filed a police report and is cooperating with investigations. - CNA/xq/al
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