Australian Jock Palfreeman will seek a review of crucial video evidence omitted from his first murder trial, which could lead to retrial in Bulgaria.
The 33-year-old, who's on parole after spending almost 12 years behind bars, will make an application to the Sofia City Prosecutor's Office on Monday.
"The major evidence was missed by the courts first time around," Palfreeman told AAP.
"With this new evidence it is more then enough to have a retrial."
The Australian was convicted in 2007 for the stabbing murder of Bulgarian Andrei Monov and attempted murder of Antoan Zahariev.
He has consistently maintained he acted in self defence after coming to the aid of two Roma men who were being attacked by a group of Bulgarians.
The CCTV footage of the fight wasn't admitted as evidence during his original trial.
The Australian will apply for the video to be analysed and he expects the prosecutor's office to order a retrial.
"The first time around the CCTV wasn't reviewed properly," Palfreeman said.
"Individuals were not identified then but that is now possible with this footage. If individuals are identified on the footage it can be ascertained who attacked who.
"The CCTV footage shows that Andrei was still alive before him and his gang attacked me."
When asked if he was confident a retrial would exonerate him, Australian said: "Absolutely."
Meanwhile, Palfreeman remains stuck in Bulgaria with the government yet to lift a travel ban on him.
The Interior Ministry told reporters on Friday it would start the procedure of lifting the travel ban after a bid to appeal Palfreeman's parole was thrown out of the Supreme Court of Cassation on Thursday.
But the former student of Sydney's St Ignatius' College says he's yet to receive any word on his status from the government.
"We have no news, but it's past 5pm here on a Friday and no one from the government has called me or my lawyer," Palfreeman said.
"If it is true what the Ministry of Interior has told the press, it is just another example of corruption and lack of professionalism within the government as not only is information not being given to my legal representative but this is personal and private information that violates my right to private life."
He's also concerned the ministry may be misleading the press about his situation, which he claims it has done in the past.
"They could be doing anything. One thing is for sure - their illegal refusal to let me leave the country hasn't stopped," he said.