The phrase "a frequent judge" is correct and usable in written English.
It can be used to describe someone who often makes judgments or evaluations, particularly in a formal or competitive context.
Example: "As a frequent judge at local art competitions, she has developed a keen eye for talent and creativity."
Alternatives: "a regular adjudicator" or "a habitual evaluator".
He was a frequent judge in conducting competitions, a guest conductor of orchestras in the United States and Europe and a guest teacher at many American festivals and workshops.
Also a possibility is Marius Brenciu, a Romanian tenor who just won the Singer of the World competition in Cardiff, Wales; Ms. Rosenberg, a frequent judge at vocal competitions, was on the jury.
And that's why Cindy Boyd, who is chief executive of the Houston-based consultancy Sentigy and a frequent judge at competitions hosted by Rice University and the Entrepreneurs' Organization, recommends that would-be entrants conduct extensive online research via the Web sites of the host organizations.
She's a frequent judge for the James Beard Foundation awards.
"You've got to figure out how to rise above everyone else," said Gentry, a frequent judge at local pitch competitions.
She is a frequent judge at wine competitions, most recently at Jerry Mead's New World International Wine Competition, Riverside and Long Beach, CA and the Italian Organic Wine Exposition.
He's a frequent guest judge at international barista competitions and is an occasional critic of the Specialty Coffee Association of America.
And you might want to sit down for this — the frequent judge at the International Olive Oil Competition was tasting a California olive oil.
In both states, Mr. Ortiz had used aliases, false birth dates and Social Security numbers to avoid detection as a frequent offender, the judge said.
Professor Dworkin said that he and the Review had scrupulously disclosed in the piece that he had been a frequent target of Judge Posner.
Since then she has stayed on with the company and served as one of its most public faces, making appearances on the tech conference circuit, network television morning shows, evening newscasts such as Charlie Rose, and even as a frequent TechCrunch Disrupt judge.
