Does the leader of your country have the 'absolute right' to control the Justice Department of your country?

“I have absolute right to do what I want to do with the Justice Department” the president tells the Times.

"Under Article II of the Constitution, the President is responsible for the execution and enforcement of the laws created by Congress."
https://www.whitehouse.gov/about-the-white-house/the-executive-branch/

"The mission of the Department of Justice (DOJ) is to enforce the law and defend the interests of the United States according to the law; to ensure public safety against threats foreign and domestic; to provide federal leadership in preventing and controlling crime; to seek just punishment for those guilty of unlawful behavior; and to ensure fair and impartial administration of justice for all Americans.

The DOJ is comprised of 40 component organizations, including the Drug Enforcement Administration, the Federal Bureau of Investigation, the U.S. Marshals, and the Federal Bureau of Prisons. The Attorney General is the head of the DOJ and chief law enforcement officer of the federal government. The Attorney General represents the United States in legal matters, advises the President and the heads of the executive departments of the government, and occasionally appears in person before the Supreme Court."
https://www.whitehouse.gov/about-the-white-house/the-executive-branch/

So basically, the DOJ works for the President.