I think there used to be alarms, and in some places there still are the gates and in some books you can see/feel the alarm. But e.g. in the new Oodi library the

I think there used to be alarms, and in some places there still are the gates and in some books you can see/feel the alarm. But e.g. in the new Oodi library there don't seem to be gates that I'd at least recognize. https://360.northmanvr.com/F1utgPQ3E0/12117837p&152.57h&75.26t https://360.northmanvr.com/F1utgPQ3E0/12117837p&152.57h&75.2...