The police have made several arrests for possession of arms and ammunition and illegal drugs.
It came during a series of police exercises in Port-of-Spain, Arima, Sangre Grande and Arouca.
The following is a statement from the Police Service.
"In keeping with the Ministry of National Security’s drive to strengthen law enforcement operations to more efficiently combat crime, the Trinidad and Tobago Police Service (TTPS) conducted overnight anti-crime operations that resulted in the following successes:
Three men have been held and a quantity of drugs, guns and ammunition seized in various areas as police conducted overnight anti-crime operations.
In Princes Town, shortly after 5pm on Monday officers of the Criminal Investigation Department and the Court and Process Unit conducted an exercise in a teak field at Lengua road, when they observed two men acting suspiciously.
The men are said to have run off on seeing police. According to reports, the officers gave chase and held the men.
The Ministry of National Security says that in keeping with its drive to strengthen law enforcement operations to more efficiently combat crime the police conducted tactical anti-crime operations that resulted in the seizure of firearms and the arrest of several persons.
One homemade shotgun and a quantity of marijuana were recovered from a property at Poui trace, St Mary's Village, Moruga.
In another exercise, the police searched a warehouse at railway road, St Joseph and found a colt.45 pistol and six rounds of ammunition.
A quantity of illegal guns and ammunition has been seized in Central Trinidad.
Reports say at around 7:40 pm on Monday, officers from the Freeport police station raided the home of a 23 year old man at Bank Village, Carapichaima.
Officers say they found two pistols and several rounds of ammunition.
They also recovered 1 bullet proof vest.
The suspect was arrested and taken into custody and is expected to appear before a Couva Magistrate on Wednesday.