Kulai Assistant Commissioner Tan Seng Lee said that the 63-year-old man and his 67-year-old wife arrived at the Kulai police headquarters to assist with the investigation.
“The investigation paper is still being processed and will be referred to the deputy public prosecutor as soon as possible for further instructions,” he said on Monday.
On Sunday, police said the suspect, identified as a Singapore permanent resident, was being investigated under Section 108(3)(e) of the Road Transport Act 1987 for allegedly exhibiting an altered or tampered vehicle registration number.
On Saturday, a one-minute video showed a man refuelling a vehicle with partially obscured registration plates using subsidised RON95 fuel intended only for Malaysia-registered vehicles.
In the video, the first and last letters of the car’s registration number appeared to have been covered.