Does anyone know where the UCLA police gets its authority for banning any knife with a blade length over 2 1/2 inches?
None of the code sections cited on the link mentions a blade length limit for folders. Penal Code Section 626.10 prohibits knives with *fixed* blades longer than 2 1/2 inches on college or university grounds (note that this includes university-owned residence halls!). However, it does not have a blade length limit on folding blades.
Did they just state this arbitrarily? If so, how can it have the effect of law? Or is this a local campus regulation or university regulation (I haven't had the time to research this point)? I suspect that they are incorrect as to the law, and that there is really no length limit in California for folders on university grounds. But do not rely on my suspicion, because it is just that. You must do your own research. However, I feel comfortable, myself, carrying my 3" Spyderco Native at UCLA.
Johnny