u/CrystalPalatial

I live in a relatively 'rough' area of England where there is a lot of drug use (not something I personally do but to each their own). I worry that one day I may come across someone who has OD'd, and whilst this is unlikely and something I'd prefer not to happen, it's probably wise to have some on hand for emergencies. But I cannot find any definitive answers on its legality or how to get it. Can anyone help please? Thank you :)