In the 1990s Spyderco was approached by a specialized branch of U.S. law enforcement about making a knife for their undercover agents.These plain-clothes LEO's found themselves in situations where they often could not carry a firearm but carrying a knife was not a problem.Most had no formal training in self-defense tactics or MBC, but as a last resort could use a blade to protect or extricate themselves from a life-threatening situation.
This was how the Civilian model came to be.
Maximus,
I do not have the records to answer your question, I'll have to check with a different department and hope that the records are available. They might be in an offsite storage and if that's the case I have not way of getting that info for you.