Why did Minnesota have to sue the Trump administration for evidence in the Pretti, Good, and Sosa-Celis cases?

After the murders of Alex Pretti, Renee Good, and the shooting of Julio Cesar Sosa-Celis in Minnesota, state and local authorities were denied access to key evidence needed to investigate the shootings. Sometimes the feds refuse to share evidence because of case-specific investigative needs, but in these cases, the refusal to cooperate came from senior federal officials.
https://www.muellershewrote.com/p/new-minnesota-sues-the-trump-administration?

Why did Minnesota have to sue the Trump administration for evidence in the Pretti, Good, and Sosa-Celis cases?
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