<prompt> Translate the following text to EnglishSheria za serikali za Marekani zinakataza serikali kutumia taarifa zozote zilizotolewa kwa ajili ya makubaliano ya kushitakiwa, na jaribio la Lewinsky la kupata kinga ni aina ya makubaliano ya kushitakiwa.  <response>: The federal rules of criminal procedure prohibit the government from using any statements made in furtherance of a plea bargain, and Lewinskys attempt to gain immunity is essentially a form of plea bargaining. 