When Sen. Paula Hawkins and a Senate subcommittee get to Miami Saturday for a hearing on Cuba's involvement in drug smuggling, they're going to get an earful.

For one thing, Miami City Commissioner Joe Carollo is willing to tell them there are Castro agents on the Miami police force.

"I'm extremely sure there are Miami police officers working for Communist Cuba," he says. Carollo says he bases the charge on information from the turncoat agents of the Direccion General de Inteligencia (DGI), Castro's version of Russia's KGB. The agents' purpose is to harass anti-Castro activists and inhibit efforts of the President's anti-drug task force, Carollo says.

Miami Police Chief Kenneth Harms declined to comment on Carollo's charge. Carollo and Harms, it should be noted, have been feuding for years.

Saturday's hearing, at 9 a.m. at the Dade County Courthouse, was called by the U.S. Senate subcommittee on national security and terrorism, which is seeking to involve Hawkins' Senate Drug Enforcement Caucus more actively in probing the Castro-cocaine connection.