He specialized in criminal law.

他专攻刑法。

She's an authority on criminal law.

她是刑法专家。

He was a professor of criminal law at Harvard University law school.

他曾是哈佛大学法学院的刑法教授。

The trial is concerned only with the determination of guilt according to criminal law.

审判只是根据刑法进行定罪。

To review the purpose of the offense have a significant meaning in the criminal law practice.

对犯罪目的的审查在刑法实践中具有重要意义。