"legitimate practice" is a correct and usable phrase in written English.
It is typically used to describe an accepted or authorized way of doing something. Here is an example: "Following proper sanitation protocols is a legitimate practice for restaurants to ensure the safety of their customers."
This was once a legitimate practice and guides would even hand out chisels to visitors.
"Brown's case is even more egregious:As even the government itself concedes, ProjectPM comes under the definition of the legitimate practice of journalism.
"Variable pricing when negotiated by organized labor or health plans is a legitimate practice," said Mr. Herr, whose office filed the suit in state administrative courts after customers complained.
Young said short-term isolation under supervision could be a legitimate practice for managing people who need to be separated from the general community "for a very short period of time, for their own safety or well-being".
The respected sports scientist Ross Tucker, for instance, believes that what started out as a legitimate practice – the idea that athletes with asthma, say, getting TUEs so they could negate the disadvantages they faced – has been corrupted.
As a nation, the United States regarded it as a legitimate practice, respected the right of white Southerners to own other human beings, and expressed that respect in laws that governed not half but all of the land.
Lobbying and political contributions can be perfectly legitimate practices, but only when the public can see who is pulling the strings.
Noting that the definition of proprietary trading is imprecise, Wall Street says that the rule threatens to spill into legitimate practices like market-making and hedging.
A new book about anthropologists who worked with isolated Indians in the Amazon Basin has set off a storm in the profession, reviving scholarly animosities, endangering personal reputations and, some parties say, threatening to undermine confidence in legitimate practices of anthropology.
The company suggests developers who use third-party marketing services to check to make sure they engage in legitimate practices.
Communities adopted a communal defense strategy to pool resources and be recognized as a group with legitimate practices and customs.
