We use 3M self-check with RFID for library materials. Unfortunately, when we first started tagging, we’re suggested to tag everything as books only. Now with the 3M self-check, I would like to restrict some of materials so that they can’t be returned through self-check machine; namely AV, Course Reserve and Closed Collection. Is there anything we can do in Koha to have this restriction instead of having to re-tag all of these materials again? Thanks & regards, *Peter Lau* Librarian Tel: (852) 3977 9868 | Email: Peter.Lau@yccece.edu.hk | Fax: (852) 23384320 [image: https://docs.google.com/uc?export=download&id=1wiYZQsqhNTJZjyNbLJx-6ODZyoYE5NNu&revid=0BzpPRj4UE0XeT1R2WUt2dnhmTFBBeEpVR3dqcU5QbnF6NVg4PQ] 2 Tin Wan Hill Road, Tin Wan, Aberdeen *YCCECE, Here We Grow Our Future | *www.yccece.edu.hk