"law expertise" is correct and usable in written English.
It is typically used to refer to knowledge, skill, or ability related to the practice or study of law. For example, "The law firm sought out a lawyer with extensive law expertise to handle the complex case."
Given Delaware's important need to compete, arbitration was a natural extension of its corporate law expertise.
Stanley served and chaired on numerous committees offering his law expertise, unflagging commitment, and wisdom.
To get in the matzo game, they would have to make a huge investment in new machinery, Jewish law expertise and worker training.
They may have labor law expertise, but soon they begin advising fund boards on money management contracts and other investment issues.
Some will be better than others, depending on their tax law expertise and how complicated your taxes are.
He also assisted in the setting up of the Centre for International Law at NUS to improve international law expertise in Singapore and the region.
In announcing the appointment, Attorney General John Ashcroft said Mr. Truscott had "strong leadership and immense law enforcement expertise".
Most tellingly, Mr. Wallace turned the highway patrol over to Albert J. Lingo, whose lack of law enforcement expertise made him a laughingstock even among segregationists within his own department.
David Kennedy's A World of Struggle: How Power, Law and Expertise Shape Global Political Economy Princetonn) can hardly be bettered as a description of how the world has been run and why it is so difficult to change its dysfunctional ideologies and institutions.
In March, Clark addressed the second part of the problem – the lack of law enforcement expertise – by introducing the Cybercrime Enforcement Training Assistance Act, which would allocate $20m a year to train local police departments on how to investigate and prosecute cybercrime.
Roughly half of his four-page letter was devoted to detailing the department's training, resources, experience and law enforcement expertise to show why it should be the lead agency for almost every type of emergency, disaster or attack.
