The Campus Judicial Office is the office that would oversee campus and student conduct investigations and proceedings. Schools have different potential offices depending on the nature of the offense. Some schools, for example, have an office dedicated specifically to academic integrity issues and academic misconduct charges. All schools are required to have a Title IX coordinator and a Title IX office say. So for Title IX sexual misconduct cases, that is, at other schools they may have a general disciplinary office that oversee discipline cases of a more general nature: alcohol violations, drug violations, hazing, or say violations involving organizations, student organizations such as fraternities and sororities.
So as to what the specific office is and who makes up that particular office will depend on the school involved, and also the particular nature of the offense. An experienced attorney advisor can help a student best navigate the process and can also help them understand their rights and protect their interests through the process.