Under that non-final ruling, Petrac is to serve a six-year term.
The prosecution will analyse all video recordings from the court room made by the official court cameras as well as by several TV crews that covered the trial of Petrac and others indicted for the kidnapping of Tomislav Zagorec.
On 18 December, after Judge Turudic read out the ruling, the defendant Petrac addressed him saying that he had followed all his movements and that he knew where he had gone and with whom he had talked.
That's why the Zagreb municipal office of the Chief State Prosecutor initiated an investigation against Petrac.
On Monday, investigating judge Oliver Mittermayer questioned Petrac as well as Turudic and the prosecutor in the abduction case, Drazen Jelinic, as witnesses so as to establish whether Petrac's words could be interpreted as a threat.
During today's investigative hearing, Petrac denied threats and explained that by having said that he was following every movement made by Judge Turudic, he had intended to make public that he knew that Turudic had been exposed to political pressure during the trial and that he had made the ruling without evidence.
After the questioning, Turudic and Jelinic declined to speak to journalists, while Petrac's lawyer, Anto Nobilo, said that he believed that no indictment would be issued after the ongoing investigative proceedings.
The lawyer, however, said he would prefer the continuation of the proceedings as an indictment would enable the defence team to collect some evidence in favour of its client.
After that "many can find themselves in problems", Nobilo said declining to elaborate whom he referred to.
Nobilo added that he had presented the court with a copy of documents made by former Croatian Counter-Intelligence Agency (POA) that show that the Britons had insisted on Petrac's arrest due to his assistance of General Ante Gotovina while the latter had been on the run, according to the lawyer's explanation.
Runaway Croatian tycoon Hrvoje Petrac was arrested aboard a ferry between the Greek port of Igoumenitsa and Ancona, Italy, in August 2005.
Petrac, for whom Interpol issued an arrest warrant, was on the run since the kidnapping of General Zagorac's son in February 2004. In early 2005 the Zagreb County Court ruled that he masterminded the abduction and sentenced him to six years in prison.
Upon his extradition to Croatia in the autumn 2006, the retrial was held and Judge Turudic again sentenced him to six years in jail for the abduction.
Gotovina was on the run from the summer of 2001 when the International Criminal Tribunal for the former Yugoslavia (ICTY) unsealed his indictment until December 2005 when he was arrested on the Tenerife.