Alzrius
The EN World kitten
Sean K. Reynolds talks about this as part of the second half of his Fewer Absolutes article:
Sean K. Reynolds said:Disable Device: This is not a trained-only skill. If you have no ranks in Disable Device, increase the DC of all Disable Device checks by +10. {I may not have any ranks in Disable Device, but I know I could jam a lock (DC 10+10) if I had to; a toothpick or wires in the right place ought do it, it would just take me a few tries. I'd have a hard time sabotaging a wagon wheel (I'd need some tools to get that DC 15+10) and would have no chance disabling or resetting a mechanical trap (DC 20+10).}
Any character (not just a rogue) who beats a trap's DC by 10 or more can study the trap, figure out how it works, and bypass it (along with her companions) without disarming it. {The +10 for untrained covers the added difficulty, no need to make this feature class-exclusive.}
Characters can disarm magic traps. A magic trap generally has a DC of 25 + the spell level of the magic used to create it. The spells fire trap, glyph of warding, symbol, and teleportation circle also create traps that a character can disarm with a successful Disable Device check. Spike growth and spike stones, however, create magic traps against which Disable Device checks do not succeed. See the individual spell descriptions for details. {The +10 for untrained covers the added difficulty, no need to make this feature class-exclusive.}
Sean K. Reynolds said:Search: There is no class or race-based restriction on using this skill (no uses of the skill are limited to rogues or dwarves). {The DCs for tough traps, particularly magic traps, are high enough that only characters with Search as a class skill are going to have much of a chance of finding them at all.
Basically in core d20 there are two barriers to finding traps: the high DCs (which require a large skill point investment and mean that only the ranger and rogue have any chance of reaching them because they're the only two core classes with Search as a class skill), and the rogue restriction. As rangers and rogues are the only classes that have a chance of hitting those high DCs, the rogue restriction is basically a "rangers can't do this" rule, and that's lame. Is Aragorn unable to spot traps? Is prince Gwydion of Prydain unable to spot traps? Simply because they're rangers rather than rogues? I think not.
And we don't need to boost the DCs for non-rogues because they're already high as it is, and boosting them would be just another artificial barrier for the Search-cross-class character classes.}