British prime minister Theresa May greets European Council president Donald Tusk in London ahead of Brexit talks. Photograph: Stefan Rousseau/PA Wire

An early hearing is being sought in a High Court action seeking to establish if Britain can halt Brexit after triggering article 50 of the Lisbon Trea(...)

Prime minister Theresa May: Britain’s supreme court ruled this week that she cannot trigger article 50 without the authorisation of parliament at Westminster. Photograph: Victoria Jones/PA Wire

A number of Green Party leaders in Britain and Northern Ireland have been named as plaintiffs in a case before the High Court in Dublin to establish i(...)

British prime minister Theresa May  has promised to trigger article 50 by the end of March. Photograph: EPA

A crowd funded legal challenge to determine whether Britain’s divorce from the European Union can be reversed once it has been triggered will be launc(...)