Yes, the real estate department in some places will also take photos, mainly to prevent your certificate from being taken by someone unknown. However, their most fundamental starting point is not to worry about someone taking your ID card, but as long as they can be exempted from liability. Because it is not ruled out that you have a twin brother or sister who pretends to be you and applies for a real estate certificate. The housing authority must have as much evidence as possible. If that happens, it can prove that it is the person who handed over the real estate certificate to you. Basically the same person as on the ID card