莒县地税局在调查中发现，近年来，一些不法分子偷骗抗税手段不断翻新，作案手段更加隐蔽，不仅使国家税款大量流失，而且严惩破坏了纳税人之间公平竞争的原则。尤其是社会帮派、黑热力参与经营的“钉子业户”，对上门催交税款的地税干部谩骂殴打，拒不缴税的现象时有发生。为? Shexian Local Taxation Bureau found during the investigation that in recent years some unscrupulous elements have been constantly renovating their tax-resistant means and their concealment means have not only caused a substantial loss of state taxes, but also severely punished the principle of fair competition among taxpayers. In particular, the social gangs and black-heat involved in the operation of the “nail business”, on-site tax hired cadres taxation beatings, refusing to pay the tax have occurred. for?