The investigation, led by the Kent and Essex Serious Crime Directorate has been running since early December 2012 and is looking at fraudulent activity in excess of £1m.Police have been working with Essex County Council Trading Standards and Adult Social Care.
The warrants were executed earlier this morning, at addresses in the Colchester and Clacton areas. A team of 65 officers is involved. Police say they are building a case around 39 victims whose ages range from 65 and 99-years-old.
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Increasing cloud and rain overnight. Blustery and cold tomorrow.
Events are taking place in Cambridge, Norwich, Colchester, Southend and Lowestoft today, to mark Holocaust Memorial Day.
Cloud will increase through the day with rain arriving by dawn.