process of acquiring tenure When the time has passed (5 years I think) and a faculty is being evaluated for tenure what aspects play a role for anyone getting tenure or not? do comments from current students play a role in it?
Applications for tenure are typically evaluated based on 


Research
Teaching
Service


Some institutions will solicit comments from students when they are evaluating teaching.  Commonly students' teaching evaluations are considered as well.  How strongly different factors are weighted depends on the institution.