A police officer in Florida can detain you to ask you name and purpose for being in a particular place if the officer has reasonable suspicion to suspect criminal activity is going on. This is called an Investigatory Stop and the police officer must articulate the facts used to support his suspicion.
Factors the officer can consider are:
What time it is.
What day of the week it is.
Where the person is located.
The physical dress and appearance of the suspect.
The suspect’s behavior.
The operation of any car involved.
If you are arrested in Jacksonville based on a JSO officer’s detaining you, a Jacksonville Criminal Attorney could look at the facts and circumstances surrounding your detainment and possibly file a Motion to Suppress anything illegal found because the officer acted improperly.