Judge Grimm attended the University of California, Davis, where he received a Bachelor of Arts degree in Classical Rhetoric in 1973, summa cum laude.

While at Davis, Judge Grimm was a member of Phi Beta Kappa and the Reserve Officer Training Corps.

In active service, his legal duties included the Judge Advocate General's Corps in Fort Bliss, Texas.

Judge Grimm has written numerous books and articles on subjects including electronic discovery, civil procedure, evidence and trial practice and lectures frequently on these topics.

[4] He would replace Judge Benson Everett Legg who has announced that he is taking senior status effective June 8, 2012.