LAHORE Pakistan government has dispatched a three-man delegation representing the Federal Investigation Agency - the countrys highest law enforcement agency - to London to investigate allegations of spot-fixing in the fourth Test match against England at Lords. Pakistani cricket was hit by controversy as Scotland Yard officers investigated claims that reporters paid a middleman 150,000 in return for exact details relating to play during the final Test of the four-match series. The middleman - the 35-year-old Mazhar Majeed - was arrested on Saturday and released on bail to appear before police at a future date. Interior Minister, Rehman Malik, said his country would not back down from conducting an independent investigation into the charges. Scotland Yard is doing its own investigations, our team is there to assist them and also independently find out what has happened, Malik said. The FIA delegation ... will not only assist but also carry out their own inquiries into the allegations made against our players. Four Pakistan players, Mohammad Aamer, Mohammad Asif, the wicketkeeper Kamran Akmal and the captain Salman Butt have given statements to the police over allegations that centre on the timing of no-balls delivered during the game. The Pakistani prime minister, Yousuf Raza Gilani said: The latest fixing allegations have bowed our heads in shame. I have ordered a thorough inquiry into these allegations so that action could be taken against those who are proven guilty. Pakistans cricket team has, over the past few months, endured wave after wave of controversy over match-fixing, which revolved around the sides tour of Australia. Malik is adamant his country will not allow its sporting reputation to be tarnished further, saying: This issue has already hurt our image and that of Pakistan cricket and we want to know the truth. We want to be clear about our cricket future. It would be interesting to see how the FIA, tainted with allegations of postings of people behind-bar, investigate the issue. The same FIA failed to make any headway in investigations of Sri Lanka team attack.