"Use of force continuum" refers to department-specific models.
Not exclusively. The concepts apply well to private citizen encounters.
There is "command presence" and "command voice", for example--both concepts from the force continuum. These are important elements for non-LE, as (unless, while using "command voice," you threaten physical violence) use of this level of force does not contain any elements of a crime.
Next is usually empty-handed contact force, which is generally considered non-lethal force (unless you are a "trained-to-kill" "my hands are lethal weapons" martial artist, of course). Use of such force usually contains the elements of the crimes of simple assault and battery, and so justification must be present.
Next comes the use of non-lethal (or less lethal) tools, which might include kubotan, OC spray, or electonic stun device. Jurisdictions vary, but use of a tool can up the ante to some elevated (aggravated) form of assault and battery.
Finally, there is lethal force, which typically includes the use of per-se lethal weapons (bludgeon, knife, and gun) and de facto lethal weapons (like the shod foot in the right circumstances). Use of these weapons will usually buy you assault with a deadly, if not attempted murder.
As we go up the force continuum, we need to also go up the justification continuum. If you think that is not true for private citizens, you are wrong.
You and the other fellow were using the term colloquially.
No, I am using it precisely and correctly. You are claiming that it has only one, exclusive correct use, (
yours, coincidentally
), but it has more.