Suffolk Against Fraud said: "Criminals rely on creating a sense of urgency, fear and authority to gain a victim’s trust." 2- Fake charity collection bagsFake charity collection bags have been found dumped in rural areas in Suffolk, raising fears of doorstep scams and potential burglaries. A spokesman for Suffolk Trading Standards said: "Our advice is don't buy at the door. There have been reports of fish sellers calling at properties in Barham, near Great Blakenham according to Suffolk Trading Standards. The sellers also use transit-style vans, which may not be refrigerated according to Suffolk Trading Standards.