"material" ı niye koymuşlar bilmiyorum (belki esas anlamındadır) ama aşağıdaki cümlelerden böyle bir anlam çıkarıyorum:

"The court with material jurisdiction for the registered office of ENGEL Austria GmbH has local jurisdiction for any direct or indirect disputes arising from this contract."

"The Provincial Public Defender, by conducting the case for the plaintiffs, would assume prosecutorial responsibilities, thereby encroaching on the exclusive material jurisdiction of the Public Prosecutor;"

"This is a sign of democratic morals, a participative perception and respect for local authorities on the part of the Greek minister with material jurisdiction, Mr Souflias."

https://glosbe.com/en/en/material jurisdiction