"explains the law" is correct and usable in written English.
You can use it when you are discussing the details of a specific law or when describing the purpose of an essay, article, or book that focuses on legal matters. For example: "This article explains the law surrounding estate planning in the United States."
After every mass shooting in the United States, Graydon explains the law again to reporters from Germany, Britain, Japan and other countries, he said.
The jury will begin its deliberations after the presiding judge, Linda G. Baxter, of New Jersey Superior Court, explains the law at issue in the case.
Specifically, explains the law firm representing Blockr, Axel Springer wanted to prohibit Blockr's developers from being able to "offer, advertise, maintain and distribute the service" which can be used today to block ads on www.welt.de, including the website's mobile version.
"It takes a rogue to catch a rogue" is how Zerbe explains the law's philosophy.
In this work Archimedes explains the Law of the Lever, stating, "Magnitudes are in equilibrium at distances reciprocally proportional to their weights".
Again in symmetry of similar musical material, a preceding choir explains the law, while a corresponding movement reminds Pilate of the emperor whose authority is challenged by someone calling himself a king.
Thus, three centuries after Newton, symmetry is restored: the laws explain the universe even as the universe explains the laws.
One of the fair's most popular works, for example, is "The 39 Melochos" (39 Varieties of Forbidden Work), a four-volume boxed doorstopper that explains the laws and specifies the kinds of contemporary activities prohibited on the Sabbath.
This chapter presents and explains the laws of friction.
Here, the Pump Guy explains the laws and what they mean for the pump operator.
In particular, TA logically entails and explains the laws of TB.
