| Chat rooms have been a focus for regulators 
				investigating manipulation of benchmark interest rates and 
				possible rigging in the $5.3 trillion-a-day foreign exchange 
				market.
 				"We have banned the use of multi-party chatrooms in FX (foreign 
				exchange) trading already in the first quarter, and we have 
				extended this ban to other parts of our fixed income business", 
				a Deutsche Bank spokesman said on Wednesday.
 				Last week, UBS issued a memo to staff banning the use of 
				multibank and social chat rooms at its investment banking 
				division.
 				Citigroup and Barclays have also clamped down on chatroom use, 
				according to people familiar with the matter.
 				Citigroup and Barclays declined to comment.
 				Chat communications featured prominently in a five-year probe 
				into manipulation of a key interest rate known as the London 
				interbank offered rate, or Libor, which has so far seen five 
				financial firms pay more than $3.5 billion in penalties.
 				In a global probe into possible currency manipulation, 
				regulators are scrutinizing messages between traders for alleged 
				evidence that they worked together improperly to influence 
				currency "fixes" — the daily snapshots of trading used by 
				companies and portfolio managers for valuing their assets.
 [REUTERS 
				MEDIA; By Arno Schuetze and Alexander Huebner] 
				(Reporting by Arno Schuetze and 
				Alexander Huebner; editing by Carmel Crimmins and Louise 
				Heavens)
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