The officer cannot legally make a warrantless arrest for a misdemeanor unless the crime was committed in his or her presence. In some cases, police officers can make a Florida arrest without an arrest warrant.Any sheriff, police officer, or other law enforcement officer may arrest any suspected loiterer or prowler without a warrant. Police officers usually need a warrant to search property, but can arrest an individual without evidence if they have probable cause they committed a crime. There is no process. If the facts known to the officer amount to probable cause the officer can make an arrest without a warrant. Florida law outlines exceptions that allow police officers to arrest someone or to search their property without the need for a judge to issue a warrant first. There is no process. If the facts known to the officer amount to probable cause the officer can make an arrest without a warrant. To make a misdemeanor arrest without a warrant, the officer must make the arrest immediately or in fresh pursuit of the suspect.