PATNA, July 10 -- Union home Minister Amit Shah on Thursday evening chaired and addressed a conference of Superintendents of Police (SPs) from around 119 districts, including seven border districts of Bihar. The Bihar DGP Vinay Kumar, DG special branch also participated in the conference. The conference held in New Delhi sought to strengthen the country's border security framework by assessing the prevailing situation in vulnerable frontier regions and identifying measures to improve enforcement. The meeting has been significant given the Centre's intensified campaign against illegal immigration, which has been an organised attempt to alter the demographic composition of districts located along the international border in the eastern part of the country. Apart from infiltration, illegal immigration and demographic changes, border security, drone threats and narcotics trafficking were discussed during the conference. The conference was also held against the backdrop of the Centre's decision to constitute a high-level committee a few months ago to examine the extent of demographic changes taking place in different parts of the country and identify the factors responsible for them. SPs from border states and Union Territories, including Jammu and Kashmir, Punjab, Uttarakhand, Rajasthan, Gujarat, Uttar Pradesh, Bihar, West Bengal and the northeastern state are participating in the conference....