Europol’s support and assistance to the UK’s National Crime Agency (NCA) have contributed to the conviction of a transnational serial child sex offender. The suspect, a 70 year old former teacher, pleaded guilty to 23 additional charges including sexual abuse of two pupils at a UK school in the 1980’s and 1990’s. He had previously pleaded guilty to 22 other charges related to the sexual abuse of nine children in Thailand between 2009 and 2012. The suspect was extradited from Spain after efforts coordinated by Europol and the UK, Spanish and the Dutch Liaison Bureaux at Europol. Investigators in the Netherlands had discovered images of the suspect on the computer of another offender. Reports on the case state that the suspect had occupied a number of positions of trust in the UK and in Thailand, including teaching and as a scout leader. Previously convicted of possession of child sexual exploitation material (child pornography) in 1992 he was further investigated in 2002 at an address in Guernsey and again in 2012 as part of Operation Spade in the UK. By then he was living in and travelling to various countries, including Thailand where police arrested him in 2013. He later skipped bail. In 2016, the NCA discovered that he had an address in Spain. Europol supported the NCA, through its dedicated team for child sexual abuse, Focal Point Twins, as well as the UK, Spanish and Dutch Liaison Bureaux at Europol. The support was coordinated with the separate inquiries on the suspect in the different countries. After a European Arrest Warrant was issued by the National Crime Agency the suspect was successfully executed in Spain leading to his extradition.