PART 2 - INTERNATIONAL CRIMES AND OFFENCES AGAINST ADMINISTRATION OF JUSTICE
International crimes
11.
War crimes—
(2)For the purposes of this section, a ``war crime'' is an act specified in—
(a)article 8(2)(a) of the Statute (which relates to grave breaches of the First, Second, Third, and Fourth Geneva Conventions); or
(b)article 8(2)(b) of the Statute (which relates to other serious violations of the laws and customs applicable in international armed conflict); or
(c)article 8(2)(c) of the Statute (which relates to armed conflict not of an international character involving serious violations of article 3 common to the 4 Geneva Conventions of 12 August 1949); or
(d)article 8(2)(e) of the Statute (which relates to other serious violations of the laws and customs applicable in armed conflict not of an international character).
Large-scale commission - war crimes
Part of plan or policy - war crimes
Wilfulness - war crimes
Awareness of conflict - war crimes
EDIT.