OPINION: County lines drug dealing was defined in the UK by the National Crime Agency in 2015, and has evolved considerably over the last 10 years, with some believing the term itself is now outdated; University of Liverpool Graduate Teaching Fellow and PhD Candidate Jenna Carr, a former county lines caseworker, argues that the evidence of the past decade suggests policing-led crackdowns on county lines are largely ineffective, and that public health and addressing the demand for drugs should be the priority.