Limited company contractors have been warned, along with other taxpayers, that recent arrests are "just the start" of a crackdown by HM Revenue & Customs (HMRC).It comes after recent campaigns led to the arrest of five plumbers for incorrect or non tax payments and a further 600 investigations launched.The comments could inspire a number of enterprises to seek help with their bookkeeping from a specialist accountancy service.John Pointing, assistant director of HMRC Criminal Investigation, added: "We provided a chance for those we have arrested...