a matter that falls within the jurisdiction of a federal court or a federal law-enforcement agency.
“In Case Of” vs. “In The Event Of”: Which One Is Correct?Do you break the glass in case of emergency or in the event of emergency? The phrases in case of and in the event of are both prepositions.
make a federal case (out) of, Informal. to exaggerate the importance of or make an issue out of (something trivial).
Origin of federal case
First recorded in 1950–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019