Law & Order” celebrated its 30th anniversary on Sunday.

To mark the special milestone, Dick Wolf’s production company, Wolf Entertainment, posted a throwback photo from the set.

“#OnThisDay: 30 years ago today, a show called #LawandOrder premiered," the picture was captioned.

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Chris Noth, who played junior detective Mike Logan, John Christopher Jones, who played Dennis Shearer, and Gerry Bamman, who played internal affairs Lt. Kennedy, were acting in a scene together in the photo.

“Law & Order” premiered in 1990 and ran for 20 seasons until 2010.

Multiple spinoffs were born following the series.

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LAW & ORDER -- "The Blue Wall" Episode 22 -- Air Date 06/09/1991 -- Pictured: (l-r) John Christopher Jones as Dennis Shearer, Chris Noth as Detective Mike Logan and Gerry Bamman as Internal Affairs Lt. Kennedy

LAW & ORDER -- "The Blue Wall" Episode 22 -- Air Date 06/09/1991 -- Pictured: (l-r) John Christopher Jones as Dennis Shearer, Chris Noth as Detective Mike Logan and Gerry Bamman as Internal Affairs Lt. Kennedy (Al Levine/NBCU Photo Bank/NBCUniversal via Getty Images)

Most notably is “Law & Order: SVU,” which is the franchise’s last remaining spinoff using the “Law & Order” title.

“Law & Order: SVU” had its first table read of Season 22 on Saturday. It was conducted virtually due to the coronavirus.

"It’s official! The bands back together!" the series star Mariska Hargitay captioned a photo on Instagram. "We had our first read thru [sic] today. #zoom Remember me in quarantine.#SVU22.

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On Monday, the cast returned to set.

“First day of shooting season 22!! 😮Making history. So grateful to be back at work.” Hargitay, 56, wrote.