Christopher Bunn, 38, of no fixed address, had originally been arrested in October 2014.
A man wanted by Sussex Police has been located in Wales and sentenced to imprisonment for the offences, which involved indecent images of children.
Christopher Bunn, 38, of no fixed address, had been arrested in October 2014 on suspicion of possessing indecent images of children, after he was seen by staff, looking at images on his laptop whilst in the Jubilee public library in Brighton. He was bailed for further enquiries but failed to answer to his bail.
Bunn, previously of Stanley Street, Brighton, went on the run and despite police enquiries and media appeals including BBC Crimewatch, was not found until October 2017, when he was arrested in Newport, Gwent, for shoplifting.
A check of police records quickly identified him and he was also charged in Gwent with the Brighton offences
At Cardiff Crown Court on Tuesday (13 February) he pleaded guilty to the Brighton offences, which were three counts of taking indecent images of children, and three offences of possessing indecent images of children. He was sentenced to a total of four and eight months imprisonment for those offences.
None of the images were believed to have been of local children, either in Brighton or Gwent.
He also pleaded guilty and was sentenced to a total of a further four months imprisonment for offences in Gwent, which were perverting course of justice, and two cases of shoplifting, thus being sentenced to five years in all.
Detective Constable Angela Harvey of the Brighton Safeguarding Investigations Unit said; "This has been one of longer running enquiries and we are glad that Bunn has finally faced justice with the help of our colleagues in Gwent."