Lae Metropolitan Commander Chief Superintendent, Anthony Wagambie, is warning individuals who have been supporting criminal activities through the use of vehicles, boats and funding to stop.
Wagambie, says police investigators have identified leads on how these gangs have been operating.
Those who have been getting involved in criminal activities will be arrested and charged if there is enough evidence found.
Police are also monitoring activities within the city following the spate of robberies that happened in the last three months.
Random roadblocks are set up to check on occupants of vehicles.
The Metropolitan Commander is appealing to the general public for their cooperation when approached by police at road blocks.
Wagambie, says since the start of the special operation there has been a decline in robberies within the city.