How To - Surveillance In A Library

I am thinking along the lines of how retail manages shop lifting. What I learned from the report posted a couple of months ago is that store detectives when they saw suspicious behavior signaled to security to watch what they are doing without drawing attention to themselves. In a library, floor staff could serve the role of "library detectives" but who is manning the cameras? Perhaps a dedicated station in the library office could serve that role... Suggest you read the retail report, maybe some ideas might come from that.

Seems to me that this would be a good scenario for 360 degree fisheye cameras mounted in the center of the aisles. This would allow you to see down multiple rows of shelves with one camera. Since quality of image wouldn't appear to me to make much difference in this application because you're looking for an "act" and it would be easy to know who the perpetrator was. May need to look at rearranging aisles as well....

The other issue I see here with putting cameras on every aisle is that there are still other places where a page could be removed - someone could take a book to a study carrel (holy smokes, I don't think I've actually used that term since high school) and pull out the page while reading it, slipping it under a coat or into a binder or notebook in relative privacy (unless you want to litter every corner of the library with cameras). Cameras watching the shelves and rows will let you track (to some degree) who takes a book out and when, but will be little use in proving who actually removed a page, especially if several people use the book before someone notices it missing.

Consider, too, that unless you have really good resolution and lighting, it may be impossible to tell WHAT book someone takes out from the middle of an aisle, especially if a lot of them look similar; someone accused could claim that they didn't take out that specific book, but one adjacent to it.

I agree, the best bet would be to have a strict checkout system - to expand the retail analogy, think of it more like a pharmacy: most items are out on open shelves, with the few "controlled substances" being available only over-the-counter from the pharmacist. If resources for indexing are tight, the practice could be limited to the books considered particularly valuable, rare, and/or susceptible to page theft. Since traffic for those books tends to be low, until the indexing is improved, it may even work to have a staffer accompany the borrower to find the book he/she wants.

They could also adopt something of a "safe deposit box" concept where certain books are under a checkout procedure, and then can only be taken to a certain open area with a couple of covering cameras, that offer little privacy for page-ripping.

Honestly, I think a combination of control measures would be FAR more effective than a bunch of cameras in reducing the actual theft. OP notes that even if a page is recovered, the value of a book is substantially reduced, and so the "ounce of prevention" theory really applies.

While placing a camera in every aisle might not be cost effective or feasible, perhaps placing a mirrored dome in each aisle would be.

You're going for the deterrent effect of having cameras. Some of the domes could have cameras; others would not. Or, you could move the cameras from time to time.

This option, cameras at the point in ingress/egress, and a few signs might have the desired effect without an insurmountable expense.