Authorities have begun prowling Interstate 95 between Miami and Jacksonville to crack down on speeders and other traffic offenders.

The 48-hour effort began Thursday evening and is the latest leg of the Staying Alive on 95 campaign and the first to encompass all 380 miles of Interstate 95 in Florida.

Former state Rep. Irv Slosberg started the campaign in 2004 while serving in the Florida Legislature. Slosberg, whose daughter Dori was killed in a car crash in 1996, has continued the highway safety program through a nonprofit he founded in his daughter's name.

Last June, the multiagency effort resulted in 400 speeding tickets and almost 100 seat-belt citations. Authorities also arrested 12 motorists on drunken driving charges and four on aggressive driving charges and issued another 75 tickets for driving with a suspended or revoked license or without insurance.