These modifiers are all in addition to the ones listed in the PHB.
| Picking a sleeping victim's pocket | + 50% |
| Picking a thief's pocket | - 1/2 thief's pick pocket score |
| Subject is aware of thief's attempt | - 50% |
| Subject is holding the item being picked | - 50% |
| Pick pockets attempted from a distance (with rope and hook, etc.) | - 100% |
| Opening a lock of variable quality | +/- 1-20% |
| Without thieves' picks | - 25% |
| Freeing yourself from bindings (rope, etc.) | - 30-100% | Opening a magical lock (wizard lock, etc...) | - 100% |
| Finding/removing a trap of variable quality | +/- 1-20% |
| Without destroying trap (ie, remove it, then put it back) | - 40% |
| Finding/removing magical traps | - 50% |
| While a thief is detecting noise | - thief's detect noise score |
| Subject is searching for thief | - subject's perception |
| Subject(s) not attentive | + 20% |
| In loud surroundings | + 20% |
| Subject(s) sleeping | + 40% |
| Subject(s) not paying attention | + 40% |
| Dark/night | + 20% |
| Subject is searching for thief | - subject's perception |
| Sneaking in front arc of Subject (within 20') | - 40% |
| Subject aware of thief | - 40% |
| Nowhere to Hide | - 50% |
| Subject focused on thief | - 100% |
| Subject can magically detect thief (True Seeing, etc) | - 100% |
| In loud surroundings | - 20% |
| Blind Fighting | - 40% |
| In a magically silenced area | - 100% |
| Understand spell being cast | - 100% |
| Avoiding falling damage | - 100% |
| Reading magic | - 100% |