This is a true statement
NH state law only prohibits carry in a court house.....period.
It also prohibits political organizations (towns, schools etc) from banning firearms or anything related to firearms......
AG even supported this recently which is what led to recent SB500 dust up which failed.
N.H. AG: School Gun Bans Unlawful
The question regarding Keene State is how much state $$$ it takes and is it a private organization OR is it a political subsidiary of the state of NH like public schools.
If Keene State is in fact private then they are within their right as a land owner to ban people from coming onto their propt with firearms