Items classified as hazardous material, dangerous goods, prohibited or restricted articles by IATA (International Air Transport Association), https://www.hse.gov.uk/fireandexplosion/about.html or other government or regulatory agencies;
Items the carriage of which is prohibited by any law, statute or regulation;
Items requiring Courier Companies to obtain any special license or permit for transportation; Packages that are wet, leaking or emit an odour of any kind;
Such items include but are not limited to Gold and Silver ore, Bullion, Precious metals and stones, Jewelry(without invoice), semi-precious stones including commercial carbons or industrial diamonds, Currency (paper or coin) of any nationality, Securities (including stocks and bonds, share certificates and blank signed share transfer forms), Coupons, Stamps, Negotiable instruments in bearer form, Cashier's cheques, Traveller's cheques, Credit/debit/ATM cards, Antiques, Lottery tickets and gambling devices, Livestock, fish, insects, animals, Plants and plant material, Human corpses, Organs or body parts, Blood, urine and other liquid diagnostic specimens, Hazardous or bio-medical waste, Wet ice, Pornographic materials, Pontraband, narcotics and psychotropic substances.
The categories of dangerous goods are: Explosives Gases Flammable Liquids Flammable Solids Oxidizers and Organic Peroxides Toxic & Infectious Substances Radioactive Material Incendiary, Corrosive or flammable substances, Hazardous chemicals, Explosives, Firearms or parts there of and ammunition, Firecrackers, Cyanides, Precipitates, Corrosives Miscellaneous e.g. Magnets – a danger to airplane equipment