Three guilty pleas were entered and charges were withdrawn against one during preliminary hearings held Wednesday at the Warren County Courthouse.

The following defendants entered guilty pleas:

John L. Griffin, Jr., 39, Warren, to statement under penalty. A count of materially false written statement was withdrawn.

Tristin J. Johnson, 29, Kennedy, N.Y., to possess of marijuana. Charges of possession of drug paraphernalia and a traffic offense were withdrawn.

Christopher J. Pickering, 40, Lakewood, N.Y., to possession of marijuana. A count of possession of drug paraphernalia was withdrawn.

Charges were withdrawn against the following:

Devin M. Bronk, 18, Warren. Bronk had been charged with simple assault and harassment.