GUWAHATI, May 14: Time and again, probing the allegation perpetually rests upon the khaki wala, the Azara police on Monday have arrested three home guards identified as Bijit Kumar, Nayanmoni Das and Sharif Ali along with a constable identified as Zakir Hussain from Borjhar out post allegedly for forceful collection of ransom from plying vehicles. The arrest was made following an inquiry.