The parliamentary snuff box is a wooden snuff box at the door of the House of Commons of the United Kingdom where snuff is stored for use by Members of Parliament. It originated after 1694 when smoking was banned in the House of Commons. It is the responsibility of the Principal Doorkeeper to ensure it is kept stocked.
It was also noted that while under the Health Act 2006 it is illegal to give out free tobacco in the United Kingdom, Parliament is exempt from this as the Palace of Westminster is a royal palace, and therefore legally exempt from the legislation.