4 territory and/or jurisdiction. Nor are they generally prohibited from doing so, provided there is a recognized jurisdictional basis. Within these parameters some human rights treaty bodies recommend that home States take steps to prevent abuse abroad by business enterprises within their jurisdiction. There are strong policy reasons for home States  to set out clearly the expectation that businesses respect human rights abroad, especially where the State itself is involved in or supports those businesses. The reasons include ensuring predictability for business enterprises by providing coherent and consistent messages, and preserving the State’s own reputation. States have adopted a range of approaches in this regard. Some are domestic measures with extraterritorial implications. Examples include requirements on “parent” companies to report on the global operations of the entire enterprise; multilateral soft-law instruments such as the Guidelines for Multinational Enterprises of the Organisation for Economic Co-operation and Development; and performance standards required by institutions that support overseas investments. Other approaches amount to direct extraterritorial legislation and enforcement. This includes criminal regimes that allow for prosecutions based on the nationality of the perpetrator no matter where the offence occurs. Various factors may contribute to the perceived and actual reasonableness of States’ actions, for example whether they are grounded in multilateral agreement. B. Operational principles General State regulatory and policy functions 3. In meeting their duty to protect, States should: (a) Enforce laws that are aimed at, or have the effect of, requiring business enterprises to respect human rights, and periodically to assess the adequacy of such laws and address any gaps; (b) Ensure that other laws and policies governing the creation and ongoing operation of business enterprises, such as corporate law, do not constrain but enable business respect for human rights; (c)  Provide effective guidance to business enterprises on how to respect human rights throughout their operations; (d) Encourage, and where appropriate require, business enterprises to communicate how they address their human rights impacts.