<Li> specialist tobacconists in relation to sampling cigars and / or pipe tobacco . </Li> <P> An exemption was also theoretically possible within the Palace of Westminster, as for other Royal Palaces, although members of the House of Commons and the House of Lords agreed to observe the spirit of the ban and restrict any smoking within the grounds of Parliament to four designated outside areas . </P> <P> Smoking is permitted in a private residence, although not in areas used as a shared work - space . In flats with communal entrances or shared corridors, these must be smoke - free . </P> <P> University halls of residence presented some dilemmas in practice as regards defining what is public and private . Several universities have imposed a blanket ban on smoking including halls of residence . </P>

When was smoking banned in pubs in england