刑事的英文：
criminal
penal

参考例句：

Criminal prosecutions are public.
刑事公诉是公开的。

A violation can result in criminal prosecution.
违法者可受到刑事起诉。

People with diplomatic passports are immune from criminal prosecution.
持有外交护照者享有刑事起诉豁免权。

He is being prosecuted for two criminal offences.
他因两项刑事罪名受到起诉。

bill of indictment
刑事起诉书

CID/9siaI 5di;9si aI `di/abbr=(Brit)Criminal Investigation Department
刑事调查局

An inspector from the CID
刑事调查局的调查员.

Informations were used also in criminal procedure.
控告起诉书也用于刑事诉讼中。

Yet one more example of criminal negligence
另一个刑事疏忽之例

The people will be highly gratified to see us vigorously combat crime.
严厉打击刑事犯罪活动是一件大快人心的事。

criminal是什么意思：
adj. 刑事上的；犯罪的；可耻的
n. 罪犯

The policeman figured the features of the criminal.
这个警察描述了这个罪犯的特征。

The case today is the delivery of a criminal.
今天的任务是引渡一名罪犯。

The priest confessed the criminal.
神父听取了那个罪犯的忏悔。

The police have got a tail on the criminal.
警察雇到一名暗探跟踪罪犯。

Robbery is a criminal act.
抢劫是犯罪行为。

penal是什么意思：
adj. 处罚的，刑罚的

Speeding on city streets is penalized.
在城市街道超速行驶应受到处罚。

Such a system penalized the jobless.
这种制度对没有工作的人来说是不利的。

Unlicensed drivers are penalized.
无证驾车要受到处罚。

All fouls in football should be penalized.
足球比赛中的各种犯规都应受到处罚。

Their team was penalized for intentionally wasting time.
他们的球队因故意拖延时间而受罚。