i dont want this to turn into a benefits bunfight! and before i start i have no problem with people on benefits for whatever reason. i have been there myself.
but my friend has just been called in for a formal interview at the jobcentre. its pretty obvious what its for but she knows she hasn't done anything wrong and is really worried. i think someone has maliciously called the hotline as i really don't think the DWP would just do random checks, but she is convinced no one would do that to her 
perhaps i am paranoid, but if it was me i would be hopping mad and trying to think of who i might have pissed off lately :o