Anarax
Master Black Belt
Correct. And ideally, this will happen in front of witnesses or on a security camera so your version of events can be corroborated.
I will say this. If you actually had to use a weapon to defend yourself, what you do after the fight is over may be the difference between getting charged and not getting charged. That said, you might still wind up getting charged as it comes down to prosecutorial discretion. And if your vision of a prosecutor is a seasoned veteran with 20 or 30 years experience and a lot of time to investigate and mull things over, think again. As often as not, it is an overworked 27 year old assistant dar sifting through dozens of police reports..
That's why I said to know the use of force and self-defense laws in your area. You can find cases that both support and oppose your view in this situation, no matter what it is. There are many factors that go into being arrested, charged and tried in a court of law. It's good to consult with a lawyer before you have to defend yourself to know what to say and how to say it to police after a self-defense scenario.