I don't allow torture, in the real world it's not effective and I don't allow evil PCs.
If an NPC is lying, that's a deception vs insight check. Other types of getting information is generally against either a DC I set based on the NPC or a wisdom save. There is no real hard guideline though - if an NPC is just a hired guard they may spill the beans in exchange for being let go. Others will be susceptible to bribes, some are unwilling or unable to talk no matter what you do.
The trick to making interrogations interesting to me is to think about the motivation and bonds of the NPC. Can they be tricked into giving away information? In some cases I'll roll a straight up intelligence check to see if they let something slip unintentionally. Other times they want to bargain, or they feed he PCs a line of B.S. Can the PCs offer the NPC something they care about? Give them enough of a reason to talk? Threaten or reveal a threat to someone else the NPC cares about?
There are many ways to handle this, even sometimes just a persuasion check.
If an NPC is lying, that's a deception vs insight check. Other types of getting information is generally against either a DC I set based on the NPC or a wisdom save. There is no real hard guideline though - if an NPC is just a hired guard they may spill the beans in exchange for being let go. Others will be susceptible to bribes, some are unwilling or unable to talk no matter what you do.
The trick to making interrogations interesting to me is to think about the motivation and bonds of the NPC. Can they be tricked into giving away information? In some cases I'll roll a straight up intelligence check to see if they let something slip unintentionally. Other times they want to bargain, or they feed he PCs a line of B.S. Can the PCs offer the NPC something they care about? Give them enough of a reason to talk? Threaten or reveal a threat to someone else the NPC cares about?
There are many ways to handle this, even sometimes just a persuasion check.