Milijan Brkić speaks to reporters in front of the State Prosecutor's Office (Photo: Tomislav Miletic/PIXSELL) Milijan Brkić speaks to reporters in front of the State Prosecutor's Office (Photo: Tomislav Miletic/PIXSELL)

Investigators questioned Brkić about information leaks from the investigation which he was involved in, as the deputy general director of police at the time. He has been implicated by reports as the person who tipped off some of the key suspects in the investigation. Formally he's suspected of breaching secrecy measures in the case.

Brkić spent more than ninety minutes talking to Chief State Prosecutor Dražen Jelenić and other prosecutors. As he was exiting the building he told reporters that the allegations against him were untrue.

"What's funny and a bit sad is that I was the person who coordinated this operation, an operation that resulted in arrests and a trial, and now I am being questioned because I am suspected of having breached secrecy measures. Had I wanted to tamper with the investigation, it would certainly not have gone forward," Brkić told reporters.

Brkić alluded that this could be a political smear directed at him or the HDZ. He also questioned why it was being brought up now, when the story had been reported several times since 2011.

He said he was speaking to Prime Minister Andrej Plenković on a daily basis, but could not disclose details about their conversations.

The reason Brkić was called in was because the original paperwork from the case, the case file, has disappeared. An internal investigation is trying to reconstruct those documents by interviewing witnesses. Sources say prosecutors plan to interview 10 more people in connection to the case. For now, the State Prosecutor's Office is treating the disappearance of the file as an administrative oversight.