The forces annual performance figures showed that officers dealt with more than 3,200 drugs offences in the year 2011/12 an increase of more than 20 per cent. The figures also showed that total crime was down by more than eight per cent 55,240 offences in 2011/12, from 60,275 the previous year with the largest fall in robberies, down a third. The only rise in offences was in incidents involving drugs. But a series of high-profile raids in 2012, including in Operation Vanguard on April 24, the discovery of Huntingdonshires largest drugs factory in Ceris Court, off Glebe Road, Huntingdon, on February 1, and a smaller farm found in Cambridge Road, St Neots, a few days later, were behind the increase. A police spokesman said: This increase demonstrates how pro-active officers are in tackling the supply of drugs in Cambridgeshire. This is a culmination of many raids weve carried out across the county, including Operation Vanguard, which was a long-term investigation into the large scale supply of class A drugs in Cambridgeshire, mainly high-purity cocaine.