"Two years on and we are still no closer in establishing what happened to Trevor since he was last seen. A number of reviews have been carried out since he went missing and we are doing all we can to find out what happened to him" said Detective Superintendent Ian Roberts.
"We are appealing to members of the community to look closely at the CCTV as I'm sure there will be someone who recognises the images of the people and vehicles."
If anyone has any information about his whereabouts that night or since they are asked to call Gwent Police on 101
"We are continuing to conduct extensive enquiries to establish what has happened to Trevor. While the community have been very supportive we still need their help in trying to identify the people who may have seen Trevor that night. We believe that three vehicles passed him on the road and that others - two women walking ahead of him and one man who was walking in the opposite direction - may have seen him.
"Trevor's family need to know what has happened to him and we are making all efforts to trace him,"
Trevor Elias has been missing for one year and now Gwent Police are re-appealing for information about his disappearance. Trevor was reported missing on Saturday April 7th. He is described as being approximately six feet tall, of very thin build, and has brown short hair. He wears glasses.