What is the ruling on working in the infringements committee, which is affiliated with the municipality and removes new, unlicensed structures from lands in villages, knowing that some of the infringers are relatives and poor?

We do not know of any impediment to working for an entity that prevents encroachment on public lands. The ruler (Wali al-Amr) has the authority to restrict certain permissible matters for the public interest. Adhering to his prohibition against owning and building on public lands is obligatory. The municipality's removal of properties belonging to those who violated regulations does not make working for it unlawful.