Peg- Just as a point of info, arrested basically means the same as the literal definition of the word: stopped. The police officer has what he/she believes to be probable cause--a reasonable suspicion that a crime was committed and you did it.
But that's a big difference from charged.
You can be arrested, detained, even cuffed; questioned at the scene, in a cruiser, at the station; then released with no charges.
All that is needed to make a happy life is within yourself, in your way of thinking. -Marcus Aurelius