To reduce hepatitis C virus (HCV) transmission among people who inject drugs (PWID), Scottish Government‐funded national strategies, launched in 2008, promoted scaling‐up opioid substitution therapy (OST) and needle and syringe provision (NSP), with some increases in HCV treatment. We test whether observed decreases in HCV incidence post‐2008 can be attributed to this intervention scale‐up.. Please contact the library to request a copy of this article - http://bit.ly/1Xyazai