I live in L.A. You can carry open with about a 3 inch blade with no problem....I also have a Sting...Which because it's sharp on both sides is illegal....easy fix....dull one side a little and use your imagination. I have carried a 4 inch Scimitar or Emerson for about 20 years and never been stopped or hassled. Use your head when carrying.
no where in the ca penal code is a double edged knife prohibited.
fixed blades in la city or la county over 3" in length are prohibited:
la municipal code:
SEC. 55.10. CARRY KNIVES OR DAGGERS IN PLAIN VIEW PROHIBITED.
(Added by Ord. No. 162,995, Eff. 1/7/88.)
(a) As used in this section, the term “knife” or “dagger” shall include any knife, dirk or dagger having a blade 3 inches or more in length, any ice pick or similar sharp tool, any straight edge razor or any razor blade fitted to a handle.
(b) No person shall wear or carry in plain view any knife or dagger upon any public street or other public place or in any place open to the public.
(c) The prohibitions of this section shall not apply where a person is wearing or carrying a knife or dagger for use in a lawful occupation, for lawful recreational purposes, or as a recognized religious practice, or while the person is traveling to or returning from participation in such activity.
note it must be in plain view, ie open carry. a folder in your pocket is fine. if the clip is visible, it is arguably in violation.