Prime Minister David Cameron acknowledged "shocking levels of collusion" and issued an apology. However, Finucane's family denounced the De Silva report as a "sham" and a "suppression of the truth" into which they were allowed no input. In May 2013, state documents dated 2011 disclosed through the courts revealed that David Cameron's former director of security and intelligence, Ciaran Martin, had warned him that senior members of Margaret Thatcher's government may have been aware of "a systemic problem with loyalist agents" at the time of Pat Finucane's death but had done nothing about it.