Former inspector-general of police Abdul Rahim Noor sees no harm in events commemorating the Hat Yai Peace Accord.
"There is nothing wrong if we want to remember the incident or historical moment, where our government signed that peace accord in Hat Yai, 30 years ago.
"This can be as a sign of thanks that the problem with communists was resolved and that there is no other purpose than to be grateful that our country is safe," he was quoted as saying by Sinar Harian.
However, Rahim said, if the events were meant to revive communism, then stern action must be taken by police.
Rahim was instrumental in getting the treaty signed, thereby marking the end of the communist insurgency in Peninsular Malaysia.
Two events commemorating the accord, one in Kajang, and another in Hat Yai, were held earlier this week.
Police have launched investigations into both events.
Prior to the anniversary, there was controversy over former Communist Party of Malaya (CPM) leader Chin Peng's ashes being brought back to Malaysia.
Rahim defended this, saying that the peace agreement gave Chin Peng the right to come back to Malaysia, even when he was alive.