People may not be aware of the "loopholes" in current laws that encourage the extortion of money from innocent people by certain authorities. I bought my daughter a used motorcycle which was less than a year old and came in the factory colours common to that brand and model. On her recent visit to the government office to renew the tax and insurance she was told her bike was "illegal", the book said it was white whereas in reality it was white and green. This seems to imply that on its first registration an error was made that needed to be corrected. But rather than correct the mistake, it was used as a perfect excuse to extract money from the innocent owner. Now what do you do? Take on the whole system, hire a lawyer, declare your innocence and fight the case? At what cost and do you stand a chance of winning? No, you pay the few hundred baht and eat humble pie. I have heard that its now illegal to have a sidecar fitted to a motorbike if it's not in the registration book, which of course is unheard of in any country. Mr Bob’s confrontation over his "illegal" fibreglass top on his pickup (PostBag, July 9) makes it sound like the traffic police have devised another new means of extortion. If they are really illegal then thousands of motorbike owners are guilty, not just this one man. Who wants to pay thousands and be the test case?