The California Institute of Technology implements an honor code that states "No member of the Caltech community shall take unfair advantage of any other member of the Caltech community." Applications of this code range from professors trusting the students not to cheat with unsupervised take-home exams, laptops and bikes left unsecured in the dormitory lounges and courtyards (though the lounges and courtyards are secured against people who are not members of the Caltech community), and the food service trusting the students not to conduct food-hoarding raids during open kitchen hours. The primary enforcement of the Caltech Honor Code is through student-run councils, but a few members of the Caltech faculty are involved.