FORT LAUDERDALE (CBS4) – A Fort Lauderdale firefighter is facing serious charges after investigators say he used a taped conversation in an attempt to extort information about a criminal investigation.

Fort Lauderdale Police announced the arrest of Steven Loleski Thursday. He is charged with one count of Threats/Extortion and one count of Solicitation to Commit or Use of Confidential Criminal Justice Information.

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Police say Loleski illegally obtained a non-consensually recorded private conversation and attempted to use it  in a threatening manner.

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Loleski allegedly threatened to jeopardized an ongoing investigation if the victim, a member of the Fort Lauderdale Fire Department and their bargaining union President, did not disclose information about an open criminal investigation by the Fort Lauderdale Police Department and the FBI/ . Prosecutors say Loleski and five others are implicated in that investigation for allegedly counterfeiting their medical credentials and providing false statements related to the investigation to law enforcement officials.

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He is being held on $51,000 bond.