Examples of criminal laws are - Carrying a weapon: it is a criminal offence to carry a weapon of any kind, even if it is for self-defence. This includes a gun, a knife or anything that is made or adapted to cause injury; Drugs: selling or buying drugs such as heroin, cocaine, ecstasy and cannabis is illegal in the UK; Racial crime: it is a criminal offence to cause harassment, alarm or distress to someone because of their religion or ethnic origin; Selling tobacco: it is illegal to sell tobacco products (for example, cigarettes, cigars, roll-up tobacco) to anyone under the age of 18; Smoking in public places: it is against the law to smoke tobacco products in nearly every enclosed public place in the UK. There are signs displayed to tell you where you cannot smoke; Buying alcohol: it is a criminal offence to sell alcohol to anyone who is under 18 or to buy alcohol for people who are under the age of 18; Drinking in public: some places have alcohol-free zones where you cannot drink in public. The police can also confiscate alcohol or move young people on from public places. You can be fined or arrested.