The Substitution Question: Safer Gambling Reform and the Contested Unlicensed Market in Great Britain

Since the 2023 White Paper High Stakes: Gambling Reform for the Digital Age began translating into binding rule changes, one empirical question has repeatedly stalled consensus on whether the reform programme is working: how much consumer activity is migrating from the regulated market to unlicensed channels. The Betting and Gaming Council, via Frontier Economics, estimates GBP 2.7 billion staked annually with unlicensed online operators, rising to GBP 4.3 billion including in-person channels; the Gambling Commission has declined to publish a comparable figure, citing an evidence base still under construction. This paper sets the two accounts side by side and makes four contributions. First, it shows that the comparative channelisation data both sides rely upon traces to a single commercial data provider, rests on definitions incompatible with those used by the regulator, and has proved unstable across successive editions of the same source. Second, it documents a structurally inverted dispute over the regulator’s own harm statistics, together with further instances of the same asymmetry in the industry’s resistance to funding enforcement against a market it describes as an urgent threat, and in the standard of proof it applies to different policy questions. Third, it finds that the Government’s impact assessment of the flagship product restriction contains no term for leakage to unlicensed operators, while relying on a within-sector displacement argument that was calibrated in consultation with the trade body itself and that the assessment never extends across the regulatory perimeter. Fourth, it assembles the available evidence that the unlicensed market’s core commercial proposition may be circumvention of self-exclusion rather than relief from regulatory friction, which would make the substitution framing itself the wrong one. It concludes that the most usable current evidence is operational and administrative rather than survey-based, and that the comprehensive evaluation which might adjudicate between the competing accounts has been deferred and narrowed in scope. It sets out four proposals directed at the evidential failures identified, none of which requires primary legislation.