Sir William said the 800-year-old rule is "ridiculous" where DNA evidence can now provide compelling proof of guilt. He said: "People get hot under the collar about double jeopardy and the risk of injustice, but I get hot under the collar at the thought of compelling evidence, which the High Court thought ought to be put before a jury. That's an injustice, isn't it?" However, turning to the detail of the murder of teenager Stephen Lawrence, who was stabbed to death by white youths in Eltham in 1993, he makes clear that after all that has been written, the Appeal Court would have to consider whether the prime suspects could ever have a fair trial.