new Delhi, Nov. 21 -- The Supreme Court has sounded the alarm over a pattern of foreign nationals securing bail on the basis of dubious sureties and then disappearing, calling upon the Union government and the Unique Identification Authority of India (UIDAI) to spell out existing mechanisms to verify the genuineness of surety documents. The court noted that in at least 38 cases probed by the Narcotics Control Bureau (NCB) and nine cases investigated by the Directorate of Revenue Intelligence (DRI), foreign nationals, particularly from Nigeria and Nepal, had absconded after furnishing sureties that later turned out to be fake. A bench of justices Sanjay Karol and Vipul M Pancholi expressed serious concern that impersonation by sureties "appe...