City of Akron v. Rasdan
105 Ohio App. 3d 164 (Decided June 21, 1995)

City ordinance banning knives violates substantive due process.

In re: Alicia P
112 Misc.2d 326 (January 27, 1982)

Vague knife laws cannot be enforced against juveniles carrying a knife.

People v. Pickett
2013 Cal. App. Unpub. LEXIS 8361 (November 13, 2013)

Second Amendment does not clearly apply to dirk knives and daggers under California law.

State v. Hermann
2015 WI App 97 (Decided November 24, 2015)

A Wisconsin law that bans switchblades even in self-defense at home violates the 2nd Amendment.

Copeland v. Vance
2017 U.S. Dist. LEXIS 11654 (January 27, 2017)

The gravity knife law in New York is not overly vague.