Abstract On 12 July 2018, the central government of the Netherlands changed its approach relating to traveller camps in the Netherlands. This change constitutes a huge political shift, as the government had previously adopted a ‘hands-off’ and ‘repressive-inclusion’ strategy, which was especially known for its infamous ‘phase-out policy’ or ‘extinction policy’ of traveller camps. This has now been replaced by a fundamental rights-proof approach that facilitates the travellers’ way of life. This article aims to uncover the various actions undertaken by international and national actors that seem to have contributed to the Dutch government’s changed stance. It looks particularly at the role played by four national actors: the Netherlands Institute for Human Rights, the National Ombudsman, the Public Interest Litigation Project, and activist Roma, Sinti and travellers and their various interest groups. The article concludes that these actors’ efforts to establish political and legal change were successful as they addressed the same issue from different vantage points and through different means. That is, they all focused on the issue of the incompatibility of the phase-out policy with fundamental rights standards and relied on a variety of means available to them (such as litigation, lobbying, reporting, raising international awareness, and ensuring media coverage). By drawing some general lessons from this case study, this article aims to contribute to the existing literature on mobilizing human rights. In particular, it focuses on the (legal) activities national actors can undertake to bring about political and legal change in order to enforce the compliance of national authorities with fundamental rights standards in both law and policy.