In view of the importance of prosecuting crimes against humanity committed during the internal conflict and in response to the appeal by the Secretary-General , his Government had also contributed $ 500,000 to the establishment of the Special Court for Sierra Leone . However , based on the shared recognition by Member States that the International Criminal Tribunals for Rwanda ( ICTR ) and the Former Yugoslavia ( ICTY ) , which were financed from assessed contributions , had both resulted in substantially higher than expected expenses for Member States and in order to reduce costs and promote greater efficiency , Member States had decided to finance the Special Court through voluntary contributions .