The West Midlands Police and then-Director of Public Prosecutions, Dame Barbara Mills, reopened their investigation into the Birmingham pub bombings following the release of the Birmingham Six. In April 1994, the Chief Constable of the West Midlands, Ron Hadfield, publicly stated: "The file, so far as we are concerned is now closed ... We have done everything we could possibly have done to bring the perpetrators to justice". Hadfield then emphasised that the Director of Public Prosecutions had found "insufficient evidence for proceedings to be taken".