The German federal crime office in Wiesbaden has issued an international arrest warrant for Perkovic, a Croatian citizen, on suspicion that he was involved in the 1983 murder of Stjepan Djurekovic, a Croatian politician in exile.
Speaking to the press after his usual meeting with citizens on Saturday, Mesic said Perkovic's son Sasa was his advisor on national security, that he was chosen for the post based on his qualifications and that this had nothing to do with his father's job.
"I have always been against a selective application of the law and for equally applying the law to everyone."
Asked about his visit to Belgium earlier this week, Mesic said this was his first visit to a European Union country since Croatia's accession negotiations were launched on October 3. He added he visited Brussels and Flanders, the region which accounts for 80 per cent of Belgium's output.
"They are interested in cooperation with Croatia. Contacts have been established with the Croatian chambers of the economy and trades and crafts. Representatives of all Croatian ports were present and I think the cooperation will be mutually beneficial. We talked about Croatia's concrete potentials and needs because we don't cooperate sufficiently with the third richest region in Europe."
Asked if he would visit the Orahovica region, where he was born and where a bird flu virus was recently discovered, Mesic answered in the affirmative, but said he could not comment on measures which were taken to combat the virus. He added that if the outbreak had occurred in a flock of swans, they should have been culled.
"I'm not an expert and don't know what's best, but I agree that certain measures have to be implemented and that there can be no discussion about that. After that, one can analyse what had to be done."
The president said breeders would be compensated for the poultry that was culled, but added this was not enough because they lived off poultry breeding and wanted to know when they could start breeding again. He added the situation should be brought to normal as soon as possible.