"In case we receive the charges, we will do everything within our jurisdiction. Currently, our action is restricted to the cooperation with the state prosecution, and any further moves will depend on the (damaged party's) application," Faber said in response to reporters' questions in Zagreb on Friday.
The Croatian police have already contacted their German colleagues on the matter.
Faber does not think that the surveillance scandal has undermined the Croatian security system, and he holds that the media overreacted to the case.
On Monday, the Zagreb Municipal Prosecutor's Office ordered the police to look into media reports on the unlawful surveillance of employees of the HT telecommunications company, the majority owner of which is Deutsche Telekom AG.
Following media reports that some employees who were potential nominees for high-raking positions in the company were placed under secret surveillance and that their telephone conversations were tapped, Croatian prosecutors ordered the police to take necessary steps to check those allegations.
Last week, media reported that Deutsche Telekom management spied on the company's workers in its subsidiaries worldwide, including in Croatia. In Croatia, one of the victims of the spying was a manager referred to in the company's files as Maya.