This chapter situates DNA testing for verification of family ties in late 1990s and early 2000s Finnish migration regime. It begins by describing the immigration regime in Finland in the 1990s as the context for initiating DNA testing. The chapter analyses the implementation of the testing procedure from the pilot project in 1996 to legal and administrative normalisation of the use of DNA proof for family reunification in the early 2000s. The use of DNA analysis for family reunification has been framed by a continuous coupling of two policy rationales, securing human rights and combating fraud, during two decades of its deployment for immigration management in Finland. Despite obvious tensions between the two rationales, they are not mutually exclusive but exist in parallel, providing a sort of 'double track' for reasoning and justification of the use of DNA analysis within the Finnish migration regime. It discusses recent trends in the use of DNA analysis for family reunification in Finland.