Libyan Abdel Basset Ali Mohmed Al-Megrahi was allowed to appeal the life sentence, imposed to him over accusations of organizing the Lockerbie assault, before Scotland's Supreme Court.
The decision was made Thursday by Scotland's Committee for reconsideration of criminal actions after an investigating process that continued for more than three years and a half.
The eight-member committee assumed the court, which imposed Megrahi's sentence could have made a mistake.
"This decision was a failure. The evidence led at the trial was so weak that, in my view, no reasonable court could be satisfied with such. There were also proof that have been presented before the prosecutors but the defence was not allowed to use them," one of the most renowned Scottish lawyers Professor Robert Black commented in an interview for Darik News.
The terrorist assault over the Scotland village of Lockerbie, made on December 21 1988, took the lives of 270 people. The Scotland Court, which sat in the Netherlands, decided the Libyan Abdel Basset Ali Mohmed Al-Megrahi is responsible for the bloodbath in the British sky. The accused was given a life sentence in 2001.