The dozen men are listed on South Yorkshire Police’s website with their photographs and details of the offences they are wanted in connection with.
Although there are other suspects the force wants to trace, this 12, who are believed to hold vital information about incidents, have been specifically highlighted.
Anyone with information on their whereabouts should call South Yorkshire Police on 101 or Crimestoppers on 0800 555111.
5. Mohammed Anwaar
Mohammed Anwaar is wanted after he failed to appear in court to be tried over a series of drug charges. The 29-year-old, with links to Sheffield, was charged with conspiracy to supply Class A drugs, money laundering, possession of cannabis and a firearm. Photo: Claire Lewis
6. Keighran Michael Green
Keighran Michael Green is wanted by police in Barnsley in connection with reported criminal damage and threats to kill offences. The 30-year-old is believed to frequent the Goldthorpe and Thurnscoe areas of Barnsley. Photo: Claire Lewis
7. John Eric Wells
Police are seeking 61-year-old John Eric Wells after he is alleged to have scammed three victims out of more than £400,000 in high value romance frauds. Wells, originally from South Yorkshire, is also known by the names Howard Walmsley and Howard Hemmings. Photo: Claire Lewis
8. Loi Le
Loi Le, 49, is wanted in connection with the reported rape of a child in Tinsley, Sheffield in 2012 or 2013. He may also be known by the names Tai Le or Cho Ngay Hanh Phuc. Photo: Claire Lewis