In March 2023, the Baroness Casey Review delivered a devastating verdict on the Metropolitan Police, labeling it "institutionally" racist, misogynistic, and homophobic. Crucially, Casey included a "two-year check-in" recommendation: if the force failed to show radical cultural and operational improvement within two years, it should face the possibility of being broken up into smaller, more manageable entities.

The appointment of Dr. Gillian Fairfield in December 2025 marks this critical juncture. This second review was triggered by ongoing public and political concern that despite the "New Met for London" plan and the dismissal of approximately 1,500 officers for misconduct, the deep-seated cultural issues identified in 2023 persist. Recent scandals, including a 2025 Panorama investigation and the "Daniels Report," served as the immediate catalysts for the review's formal launch.

Dr. Fairfield’s remit is to go beyond statistical data on officer dismissals. Her team is tasked with assessing the "unvarnished truth" of the Met's internal culture. This involves investigating whether "upstander" culture is genuinely replacing the "code of silence" and whether the force's new vetting standards are preventing the recruitment of predatory individuals. The review also examines the Met's relationship with Black and minority ethnic communities in London, where trust has remained historically low.

The stakes for this inquiry are exceptionally high. Dr. Fairfield’s findings will likely determine whether the Metropolitan Police remains a single, unified force. If she concludes that the pace of reform is too slow or that the institution is "unreformable" in its current size, she has the mandate to recommend the "nuclear option" suggested by Casey: stripping the Met of its national specialist responsibilities (such as counter-terrorism) and dividing it into several smaller, local London police services. This makes the review a defining moment for the future of British policing.