Police were out in force Saturday night and conducted searches of bars and nightspots in Tibás, Desamparados, Alajuelita, San Sebastián, La Uruca, Escazú, Moravia, Zapote, Coronado, Guadalupe, San Pedro and San José Centro.
They said they sought identification form 3,363 persons, checked out 366 four-wheeled vehicles and 55 motorcycles.
Police also confiscated two firearms from individuals who did not have a permit to carry one, they said.
The also found four persons were fugitives and eight more for whom warrants were outstanding. They also confiscated quantities of crack, cocaine and marijuana.
All this was done in two hours, said police.
Fuerza Pública officers were able to find stashes of drugs hidden in two bars, one in Concepción de Alajuelita and another in Desamparados, they said. At one place the drugs were hidden in the ceiling.