Gardaí will carry out a search into the disappearance of Trevor Deely later today.
The 22-year-old Bank of Ireland employee went missing in Dublin following a Christmas party 17 years go .
In April Gardaí initiated a “complete review” of the investigation into his disappearance after enhanced CCTV footage showed him in contact with a man who detectives believe was “acting suspiciously”.
Mr Deely was last seen walking on Haddington Road, close to Baggot Street Bridge, in the early hours of 8 December 2000.
A search will take place in South Dublin later.