'Serial' suspect Adnan Syed's lawyer says prosecution evidence used in murder trial was unreliable

The lawyer filed a motion with a court

Adnan Syed is serving life in prison for the murder of his girlfriend Hae Min Lee in 1999

The lawyer for a man jailed in a case that earned international publicity after being featured in the Serial podcast has filed a new motion – claiming cell phone evidence used against him was deemed unreliable by the phone company.

Adnan Syed’s lawyer C Justin Brown said incoming calls to his client's cell phone were cited by prosecutors as evidence that he was at Leakin Park when authorities believe the body of his ex-girlfriend, Hae Min Lee, was buried, the Baltimore Sun reported.

Syed was convicted of the murder in 2000 and is currently serving a life sentence.

But Mr Brown said phone company AT&T explicitly included a warning about the accuracy of cell tower data on a fax cover sheet that read: “Outgoing calls only are reliable for location status. Any incoming calls will NOT be considered reliable information for location.”

Mr Brown said that this information had not been raised by Mr Syed’s previous lawyer.

“We feel that the fax cover sheet from AT&T is an extremely important piece of evidence and we are bringing it to the court's attention as quickly as possible,” he said. “We hope the court considers it.”

The Attorney General’s Office, which is handling the case, declined to comment, a spokesman said