Journalist Mobeen Azhar tries to find answers to the hardest question of them all.
Is the heroin trade in West Yorkshire the best-kept secret, or is his community simply turning a blind eye to what’s happening in its midst?
With access to the inner workings of the drugs trade, Mobeen comes face to face with the scale of the business and the lengths people go to keep it hidden.
Watch the documentary series Hometown on BBC iPlayer here