Ha-ha-ha. Well, here are the statues of the city of Evanston, Illinois, USA:
"No person shall possess, in the City of Evanston, the following:
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(C) Any dangerous weapon as defined in Section 9-8-1(A).
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DANGEROUS WEAPONS: (A) Bludgeon, blackjack, slingshot, sand club, sap, metal knuckles or any knife the blade of which may be opened by hand pressure applied to a button, spring or other device in the handle of the knife, incendiary devices or any other weapon or instrument of like character.
(B) Dagger, dirk, billy, dangerous knife, razor, stiletto, broken bottle or other piece of glass, stun gun, or taser, weighted gloves, bow, arrows or any other weapon or instrument of like character. "
As you can see posession of broken glass (!!!!) is a crime down here

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