Detailed Instructions: In this task, given a sentence in the English language, your task is to convert it into the Bahasa (Indonesian) language.
Q: Officials commented that some relatives had expressed their frustration over the legal challenges involved in the prosecution effort.
A:
Para pejabat berkomentar bahwa beberapa kerabat telah menyatakan frustasi mereka terhadap tantangan hukum termasuk dalam proses penuntutan.