Well, the problem is that certain kinds of divination are assumed, by the game system, to be available.
Some means of defeating invisibility, for example. Detecting and identifying magic items. Detecting and identifying magical protections on foes.
I just, and this is just my opinion of course, think that by letting one or two spells that are useful in an investigation ban -an entire school of magic- you could be overreacting. Well, more accurately, you -are- overreacting.
However! I will deal with it.
bear in mind that some of how I deal with it may qualify as "sneakily trying to get around." Some is legit...like Glitterdust to detect invis. Some, like Vatic Gaze to give permanent Detect Magic at will, and using the Artificer's Monocle from MIC to...in conjunction with aforementioned Detect Magic at will...identify the traits of magic items, are more questionable and may be shot down.
Nevertheless, I don't see that I have a lot of options, since simply doing without those basic capabilities seems pretty silly to me.
Some means of defeating invisibility, for example. Detecting and identifying magic items. Detecting and identifying magical protections on foes.
I just, and this is just my opinion of course, think that by letting one or two spells that are useful in an investigation ban -an entire school of magic- you could be overreacting. Well, more accurately, you -are- overreacting.

However! I will deal with it.
bear in mind that some of how I deal with it may qualify as "sneakily trying to get around." Some is legit...like Glitterdust to detect invis. Some, like Vatic Gaze to give permanent Detect Magic at will, and using the Artificer's Monocle from MIC to...in conjunction with aforementioned Detect Magic at will...identify the traits of magic items, are more questionable and may be shot down.
Nevertheless, I don't see that I have a lot of options, since simply doing without those basic capabilities seems pretty silly to me.