Louis Theroux during Louis Theroux Signs His Book 'The Call of the Weird' at HMV in Dublin - October 22, 2005 at HMV in Dublin, Ireland.

The journalist Louis Theroux is returning to BBC two for a pair of documentaries. The first of the two-part series, expected to air later this year, will concentrate on alcohol addiction. Theroux has spent time with patients of alcoholism at King’s College Hospital, London for the making of the programme.

The second will focus on the issues facing people  living with long-term brain injuries.

Adam Barker, BBC Two Channel Editor, said: “BBC Two is delighted to welcome Louis Theroux back to the channel with a set of films covering British subjects with his usual penetrating documentary gaze and commitment to unpicking complex human dilemmas with highly sophisticated filmmaking.”