The phrase "a relevant precedent" is correct and usable in written English.
It can be used when discussing a previous case or example that is applicable to the current situation or argument.
Example: "In this case, we must consider a relevant precedent set by the Supreme Court in 2010 that addresses similar issues."
Alternatives: "an applicable precedent" or "a pertinent precedent".
There is a relevant precedent which helps rebut his assertion.
In weighing how the contemporary Supreme Court behaves, there's a relevant precedent here.
If you're a fan of Mr. Trump looking for hope and a relevant precedent for a comeback, this is my best comparison.
Hospitals are faced with increasing numbers of uninsured patients, businesses are worried about escalating health costs, and some liberal groups see the federal government's bailout package of the financial sector as a relevant precedent.
It sets a serious precedent".
Precedents may well be found not to apply, perhaps disingenuously; justices are very good at sending cases off on oblique paths when a direct route, like adherence to what appears to be a directly relevant precedent, is unappealing.
Because households will need to save much more and growth may be sluggish for several years, Japan may be a more relevant precedent.
Jeremiah W. Nixon, the Missouri attorney general, said in his appeal that the state court had defied a directly relevant precedent of the United States Supreme Court, the 1989 ruling in Stanford v. Kentucky.
And there is a highly relevant precedent in Barcelona, where Johan Cruyff was initially responsible for instigating the club's youth system during his managerial stint at the Nou Camp in the early 1990s, with fully formed players only emerging with regularity a decade later.
According to the Fourth Circuit, a state court decision could be considered unreasonable only if it interpreted or applied the relevant precedent "in a manner that reasonable jurists would all agree is unreasonable".
Moreover, the Commission found no relevant precedent justifying an award of moral damages anywhere near the amount requested".
