Dharan: Police headquarters launched an internal investigation against four policemen, including an inspector of Area Police Office (APO), Dharan, from on Thursday. Inspector Krishna Prasad Sharma, Sub-inspector Dipendra Adhikari, ASI Suresh Kumar Hayu and constable Bishnu Gurung are accused of irregularities while handling cases. The internal investigation began after a team led by SP Rajendra Singh Bhandari from the headquarters assessed the cases in April. Inspector Shyam Bahadur Khadka of DPO said: “The investigation is on.” — HNS