Welcome to the RAIU website

THE RAILWAY ACCIDENT INVESTIGATION UNIT (RAIU) is an independent investigation unit within the Department of Transport, Tourism and Sport.

The purpose of an investigation by the RAIU is to improve railway safety by establishing, in so far as possible, the cause or causes of an accident with a view to making recommendations for the avoidance of accidents in the future. It is not the purpose of the RAIU to attribute blame or liability.

The RAIU's investigations are carried out in accordance with the Railway Safety Act 2005, the Railway Safety Directive 2004/49/EC and Statutory Instrument No. 258 of 2014 European Union (Railway Safety) (Reporting and investigation of serious accidents, accidents and incidents) Regulations 2014.