"the Turkish Cypriot authorities"
The Immovable Property Commission (IPC) was set up by the Turkish Republic of Northern Cyprus (TRNC) and approved by its Legislative Assembly under the IPC Law (No.67/2005). This was acknowledged by the ECtHR in its 2010 Demopoulos decision: "Following [the Xenides-Arestis] judgment, the "TRNC" authorities enacted the [...] Law No.67/2005".