The Dutch court on May 20, 2008, heard Sison's appeal against the Dutch Public Prosecutors Office's request to extend its investigation until December, since the investigators arrived in the Philippines in February and interviewed witnesses.
2008年5月20日，荷兰法院听取了西松对荷兰检察官办公室提出的将调查延长至12月的要求的申诉，因为调查人员于2月抵达菲律宾并采访了证人。