Former Police Commissioner Peter Paul Zammit should be dismissed from his post on the CHOGM task force as he is not fit for purpose, shadow minister Jason Azzopardi said.
Addressing a news conference this morning, Dr Azzopardi described Mr Zammit as "an embarrassment and a threat to citizens' privacy".
Dr Azzopardi said it was clear that Mr Zammit had handed over the documents to the press himself and had therefore broken the rights of confidentiality which he was meant to uphold.
This morning's press conference was characterised by a series of heated exchanges between Dr Azzopardi and Malta Today managing editor Saviour Balzan who had reported on the controversial police files.
Mr Balzan repeatedly insisted that neither he nor Mr Zammit had been contacted by the Data Commissioner and questioned the validity of an inquiry which did not seek the view of the main parties involved.
"These findings are based on dreams. Neither of the key people were interrogated. This is all baseless," Mr Balzan said.
He also denied having received the document or ever having spoken about the matter to Mr Zammit and asked Dr Azzopardi whether he still had faith in the inquiry's findings.
Dr Azzopardi said it was not his place to question a ruling and just like in a court decision, the interested parties had the right to appeal.
Dr Azzopardi insisted that Mr Zammit was no stranger to controversy and had been embroiled in several scandals over the past two years.
JASON AZZOPARDI'S ACCUSATIONS 'UNFOUNDED AND ILLOGICAL' - PETER PAUL ZAMMIT
Contacted for his comments, Mr Zammit said that Dr Azzopardi's accusations were "unfounded and illogical".
"What gave rise to the request for the investigation by the Data Protection Commissioner was the need to raise a smokescreen to cover the issues about the missing file in Taliana's case regarding the decision of the Police Board to take action against Taliana for some very serious offences.
"Although it is wrong for personal data to be made public, in the case of wrong doings I say let the perpetrator have his due process. If Dr Jason Azzopardi feels that the public has a right to know he should be more worried about the disappearance of a file thus hiding a wrong doing, than the publication of a file exposing a wrong doing.
"I will also be seeking legal advice about his accusations," he said.
In a statement, the Labour Party said that the same people who used serious telephone leakages from the police operations room as some form of scoop were now disgusted that a journalist managed to acquire information from a police file. A realcase of weak opportunism, it said.