The Civil Police of Rio de Janeiro State (Portuguese: Polícia Civil do Estado do Rio de Janeiro) is the police force responsible for criminal investigations in Rio de Janeiro, Brazil.

According to their geographic localization in the territory of the State, the Police Stations are subordinate to one of the three great operational departments of the Police: of the Capital (Rio de Janeiro city), of the "Baixada Fluminense" (municipalities which form Rio de Janeiro Metropolitan Area, except Rio de Janeiro city) and Inland (which contains ten regions).

The criminal investigations developed by the police stations may be supported by the Specialized Police Department, through its specialized organs (divisions) when repressing the homicide crimes of unknown authors, narcotics, robbery, theft and large frauds.

The CORE (Coordenadoria de Recursos Especiais, in Portuguese), formed in 1969, is a police tactical unit within the Civil Police of Rio de Janeiro.

It is a special service which use highly trained policemen in dangerous tasks that police have to face daily.