Mark was a Senior Investigating Officer working in Law Enforcement with over 31 years’ experience of working in the various government agencies including the National Crime Agency. He has handled numerous cases involving drug trafficking, money laundering, endangered species, fraud, tackling child abuse online, extortion, hacking, and various other computer crimes.

Mark is an advanced mobile and digital forensics practitioner. He has utilised his open-source intelligence skills to locate and identify individuals and criminal organisations online. Mark was one of the founding members of the elite team called the National Hi-Tech Crime Unit, set up in 2001 to tackle online threats. He also worked in partnership with Europol and Interpol and was instrumental in dismantling a highly sophisticated international online paedophile organisation. He has also delivered training in Europol on child abuse online open-source intelligence.