59 year old Christopher George Pearce began abusing children in 1984 when his two victims were aged just 5 and 7 at the time.
His crimes continued until 1988 when he sexually abused another two children, aged 6 and 7 in Chelsea.
Officers began investigating Pearce in 2020 after he was caught trying to groom what he believed to be a child online in March 2020.
After Pearce’s arrest was posted online, two of his victims came forward years after Pearce’s terrible crimes had taken place.
Police are urging any other potential victims to make contact.