I'm running a game in a modern setting with emphasis on the paranormal (Conspiracy X). The player characters are part of a secret government organization and are tasked with investigating & combating the various alien conspiracies active on earth. They also often run into rival organizations and alien groups who use humans as members. Quite often I find that once they get wind of someone having to do with one of the groups the plots they are trying to investigate, they kidnap someone involved and interrogate/torture them rather than doing any real digging (thus circumventing a lot of the investigate aspects of the adventure). They also have a psychic who can read minds.
Their parent organization doesn't necessarily encourage kidnapping and torture, but it understands it's uses as well. I don't mind the tactic getting used on occasion, but it seems to be the default when they think they've found someone important. I'm wondering what people's thoughts on dealing with this might be?
Thanks in advance.