Nine-one-one (911) is only to be used in emergency situations. An emergency is any situation that requires immediate assistance from the police/sheriff, the fire department, or an ambulance. If you are ever in doubt of whether a situation is an emergency you should call 911. It's better to be safe and let the 911 call taker determine if you need emergency assistance.
Do not call 911:
for directory assistance
when you're bored and just want to talk
for paying traffic tickets
for your pet
as a prank
If you call 911 by mistake, do not hang up. Tell the call taker what happened so they know there really isn't an emergency.
Be prepared to answer questions from the communications officer. It is imperative for them to obtain as much information as possible in order to provide the correct emergency response and in the interest of responder safety. If you are reporting a law enforcement related emergency, you will be asked to remain on the phone if it is safe for you to do so, while the communications officer transfers you to the dispatcher at the Sheriff's Office.