In the public interest 为了公众的利益

be subject to顺从于，屈服于

The policeman shouldn't be subject to the power.

qualify使符合，使合格

be qualified to

The ombudsman is qualified to investigate private grievances against the state.

vary 不同

The opinion varies.有不同意见

It matters.

put an end to 结束

go unnoticed

好句：

同一个意思不同表达：

A foreigner complained that he had been ill-treated by the police.

The policeman had indeed dealt roughly with foreigners.

定语后置

the policeman inquestion涉事警察

complaints large and small不同程度的抱怨