aurorjinx - Here's a cut & paste from an old post.
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Lasgaviotas: I have just phoned the police, and they have told me these sprays are forbidden. Anyway, I have seen one in the small boxes where people leave their metal objects when entering a bank office (the box was open). So, some people use them. Better charged than attacked, no?
Pookita, even if you use a mobile phone against somebody he/she can present charges against you because of the harm done, It depends on the situation. But doing it with pepper spray would probably make it worse.
[ 08-17-2001: Message edited by: Ignacio ]
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Also, I believe that you can take up to a 4 oz can in checked luggage - but I would check with your airline.
As for myself, the spray was for dogs. I've oredered an electronic ultra sound gadget. Don't know if it'll work worth a darn
Fup