The ITC is invested with the mandate to watch over the security and ensure the protection of the Faith of God.

The International Teaching Centre is invested with the mandate to watch over the security and ensure the protection of the Faith of God. It must investigate all cases of incipient Covenant-breaking — employing, as necessary, the services of the Continental Counsellors and their auxiliaries and evaluating their reports — and decide whether the offender should be expelled from the Cause, submitting the decision to the Universal House of Justice for its consideration.

https://bahai-library.com/uhj_institution_counsellors