asked Her Majesty's Government:

What criteria are used to grant or deny entry visas to foreign political and military leaders accused of or suspected of war crimes, or crimes against humanity, or large-scale and systematic human rights violations, in the absence of a European Union travel ban or an indictment from the International Criminal Court. [HL4091]

All visa applications are considered in accordance with the Immigration Rules. Applicants accused or suspected of war crimes, crimes against humanity or large-scale and systematic human rights violations may be refused entry clearance under Rule 320(19) on the basis that their presence in the United Kingdom would not be conducive to the public good.