I infiltrated the UK's most dangerous drug gangs — here's what I learned about drug crime

Neil Woods spent 14 years as an undercover police officer infiltrating some of the most dangerous organized crime groups in the UK. He speaks to Insider about his experience with drug dealing gangs, and how the drug market works. Woods is now a board member of the Law Enforcement Action Partnership, an American nonprofit organization seeking to overhaul current punitive drug policies and lessen the incidences of crime and addiction.