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.In felonies, police can arrest you without a warrant if they have probable cause to believe you committed the 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. Law enforcement officials do not always need a warrant to arrest someone. Some instances allow for a warrantless arrest. In the case of a warrantless arrest, the person doing the arresting doesn't have a warrant. This type of warrant allows officers to take this individual into custody, where extradition procedures will then commence. For consent to be valid, it must be given freely, without any indication of duress or coercion.