I am new to pyrotechnics and have found it very difficult to find the right chemicals for making black powder in garden centres. I have found them at gardens direct.com but I'm worried about getting in trouble if I order them over the Internet.
So basically I have two questions.
1. Where can I get potassium nitrate and sulphur in actual garden centres?
2. Will i get in trouble by the police for ordering online ie they're monitering people buying these chemicals?