Television reporter Peter R de Vries has pleaded not guilty in an Australian court to disobeying a police order to stay away from an international crime suspect, news agency AP reports.
De Vries and a colleague were arrested last week after visiting a property in Perth despite being told by police to stay away.
De Vries said he was trying to deliver a letter to a man he suspects of involvement in the death of Dutch woman Mariska Mast while on holiday in Honduras in 2008.
A British-Australian diving instructor was arrested but later freed and his passport confiscated. With dual nationality, he used a second passport to flee Honduras. De Vries and his team traced him to Perth.
According to AP, Interpol lists the man as wanted by a Honduran court for alleged crimes against life and health.
The case against De Vries has been adjourned until September 7, when a trial date will be set, AP reported.
De Vries made global headlines in 2008 with a tv show about the disappearance of US teenager Natalee Holloway on Aruba in 2005. The show was based on hidden-camera interviews with Joran van der Sloot, the Dutch man last seen with Holloway before she vanished.