Two men were being questioned by the police for fighting and one of the suspects tried to get out of the situation by offering a bribe - two unopened packets of cigarettes.
But the bribe was rejected by Voluntary Special Constable Corporal Jeremy Koh and Special Constable Sergeant Allan Tay, and the suspect now has an additional charge.
The two officers were responding to a case of fighting near Kim Chuan Road in Hougang at about 4.40pm on Sunday.
They spotted the suspects, aged 40 and 44, and proceeded to question them.
But during the process, the older man tried to bribe the officers by offering them two unopened packets of cigarettes. The bribe was rejected, and both men were arrested.
The Corrupt Practices Investigation Bureau will be investigating the 44-year-old for attempted bribery.
The penalty for bribery is a fine of up to $100,000 and/or a jail term of up to five years.
Meanwhile, if convicted of affray, they will be jailed up to one year and/or fined up to $5,000.
Deputy Assistant Commissioner of Police Lian Ghim Hua, commander of Ang Mo Kio Police Division, commended both officers for their integrity in rejecting the bribe.
He said: "Their act is a testament to the high level of integrity in the Singapore Police Force."