1985年，一个加纳小孩向英国政府提出加入英国国籍，理由是他的母亲是英国人。为了证实他们的母子关系，法庭在审理中应用了杰弗里斯教授的DNA技术来进行亲子鉴定。证明他们确为母子后，小孩加入英国籍。这是目前报道的国际上第一例将亲子鉴定用于法庭上的案例。处于“拉链门事 In 1985, a Ghanaian child proposed to the British government to join the British nationality on the grounds that his mother was British. In order to confirm their mother-child relationship, the court applied the DNA technology of Professor Jeffries in the trial for paternity testing. After proving that they are indeed mother-children, the child joins English nationality. This is the first case reported in the world that paternity test is used in court. In the "zipper door