"It is not common practice and he will probably face the consequences," Mesic said on Thursday while visiting the Faculty of Textile Technology in Zagreb.
Mesic believes that there are regulations on who can perform checks and how, but that it is another matter if the person doing the vetting within his or her powers has carried out orders.
"This is not a matter concerning the SOA. They (the SOA) have received a request and acted on it," Mesic said.
The president said that it was established that the SOA had received the request for vetting sent by Jadranka Cigelj, who was subsequently relieved of duty as the head of the government's Office for Associations.
Mesic also believes that Cigelj probably consulted with some other persons about launching the procedure of vetting.
He also holds that the request for checks was not unlawful given that, he said, heads of state bodies have the right to request checks.
He announced that SOA chief Tomislav Karamarko would be exempted from keeping secrets and be allowed to make a statement in the case.
Asked whether Deputy Prime Minister Jadranka Kosor, who was Cigelj's superior, should be replaced, Mesic said that he was not the head of government and that he could not establish the responsibility of government members.