CHAPTER IV: OTHER FORMS OF COOPERATION
SECTION I: CONDITIONS
Art. 31 Preserving measures
1 Upon the explicit request of the Court, the Central Authority may take preventive measures to maintain existing conditions, to protect threatened legal interests, or to preserve endangered evidence.
2 If delay was to jeopardize the proceedings, the Central Authority may order preventive measures as soon as a request is announced and sufficient information is available to assess the conditions. The preserving measures shall be lifted if the Court does not make the request within the period of time specified by the Central Authority.
Preservation of evidence - national procedures for ICC proceedings
Other types of assistance - national procedures for ICC proceedings
EDIT.