NAIROBI — Kenya’s government plans to establish police posts near universities and colleges in an effort to tackle drug abuse, violence, and insecurity on campuses. Local residents and other stakeholders will also be invited to monthly security forums to address emerging threats, according to the minister. NACADA’s latest report painted a troubling picture: more than 30 percent of university students admitted to using cannabis, while nearly 40 percent reported frequent use of alcohol and tobacco. University administrators have raised concerns over rising cases of violence and substance abuse, warning that it is undermining learning environments. The announcement has sparked debate over how best to balance security with students’ rights and freedoms.