Assistant Commissioner of Police Rusiate Tudravu said they could not rule out the existence of hard drugs on Fiji's streets.
The revelation comes in the wake of suggestions the narcotic called ice has hit our streets.
ACP Tudravu said the police force had to step up monitoring and surveillance work.
The discovery of a meth-lab in Nadi has prompted the police to declare the possibility there may be others.
"Fiji is developing at a fast rate and this is a good sign for the nation as a whole. But with developments come threats, one of which could be the trade of hard drugs and this is why we cannot rule it out," said ACP Tudravu.
"This is why we have to be more vigilant with the monitoring of our borders. We are working with other stakeholders to see how we can best do that as it is a concerted effort."
After the discovery of the meth-lab at Laucala Beach Estate in 2004, which was believed to be the biggest in the southern hemisphere at that time, there have been consignments of pseudoephedrine — a key component in the manufacture of ice/methamphetamine found in flu tablets — discovered in Fiji.
Recently the police raided areas in the Central Division from where ice was allegedly found. Two such cases are before the courts.
Since 2004, the transnational police have been working with their Fiji counterparts to curb the drug trade in the region.
The key man implicated in the Laucala Beach case was Jason Zhong, who was jailed in 2004.
The police are also trying to determine overseas links and how locals are linked to the drug trade.