A Chinese supermarket was robbed and two customers were used as human shields as bandits attempted to escape last Friday afternoon.
Police said one of the suspects was shot in the face by a security guard stationed at the supermarket while two others were found hiding in nearby bushes.
A firearm and cash were recovered.
The incident occurred at Jin Jin Chinese Supermarket at Reform Road, near Gasparillo, around 4 p.m.
The suspects, two armed with guns and one with a knife, entered the supermarket and ordered the owner Jun Xiong Wou, of Guaracara Tabaquite Road, Williamsville, to hand over cash.
The suspects shot at Estate Constable Mark Baird, who was on duty at the business place.
He responded, shooting one of the men in the face, police said.
During the gunfire, the two other suspects robbed the supermarket of $5,800.
Two customers, Elaine Ramjattan and her husband Harrynath, were also robbed of a handbag containing $800 and a gold chain valued $1,000.
Police said the men then used the couple as human shields to exit the compound and ran into nearby bushes.
A team of officers attached to the Southern Division Task Force, Criminal Investigation Department and Gasparillo Police Station responded to the report.
Police said the men opened fire on the officers, who responded.
The three suspects, ages 22, 25 and 28, were arrested and a 12-gauge shotgun and $5,800 were recovered.
Police said the wounded bandit was taken to the San Fernando Police Station where he remains in stable condition, under police guard.
The men, of Princes Town, will appear before identification parades before charges are laid.
ASP Gaffar, Sgts Nobbie and Manwarring are continuing the investigations.