AN undercover British police officer who infiltrated a radical environmental movement encouraged illegal activity during protests opposing the controversial Shell Corrib pipe-line in north Mayo, an Irish Examiner investigation has revealed.

THE first day of May might be the traditional day of honouring workers and their labour across the world but the mood for celebrating Mayday will be sadly lacking in Cavan this year.

An organiser behind today's May Day labour march is not expecting any of the chaos and violence that marred last year's event.

By Ryle Dwyer