First you must find out the clause of the quality problems and furnish sufficient evidence.
首先你的查查有关质量问题的条款,并提供足够的证据。
A parliamentary committee representing all political parties appoints a person who is suitably qualified to investigate private grievances against the State.
议会内有一个代表各政党利益的委员会,由它委派一位称职的人选专门调查个人对国家的意见。