Sinn Féin seeks answers over John McGuinness meeting with Martin Callinan

Sinn Féin has wound up pressure on justice chiefs to explain why a former Garda commissioner secretly met the head of a parliamentary watchdog over whistle-blower Sergeant Maurice McCabe.

John McGuinness, former chairman of the Public Accounts Committee (PAC), was forced to defend releasing information about the January 2014 car park encounter with Martin Callinan two years late.