ZT is not KAI's answer to law enforcement and military. I know no one in the law enforcement or military world that would carry a 0454 because of the price and possibly of losing it or breaking it. For what it's worth, I was military and have been in law enforcement for the last 7+ years. I've seen only one other person besides myself carry a ZT, me an 0561 and him an 0801. But he also knew enough to have a couple of customs, too, so he was at least somewhat of a knifenut like myself.
ZT is KAI's answer to a niche market seeking a knife hyped as a military/law enforcement tool without being anywhere close to within range of what 99.9% of actual military or law enforcement would think about carrying on duty. It's done a great job of taking thick slabs of titanium and attaching a thick slab of steel that pivots, but it's done a terrible job of making that within reach of the people they claim they market to.
I've seen SOG, cold steel, benchmade, schrade, buck, protech, kershaw, and spyderco knives be carried quite a bit by fellow military and law enforcement officers. I've seen someone carrying Solingen made slip joints. I've seen guys carry Tops, Becker, Esee, and Grayman. I have not, however, seen anyone carry ZT except for myself and that the guy I spoke of earlier.
So, ZT is producing a specific product for a specific niche, but military and law enforcement officers very simply aren't it. Knife collectors? People with spare cash who wouldn't flip out if they lost or broke a high priced knife? People who like to think they need a knife designed "for military or law enforcement" without actually being in military or law enforcement? People who like to show off these said knives? Yes, yes, and yes.
If they were producing knives for military and law enforcement they would sell the knives at a price point within reach of the people who actually use and abuse knives on the front line or in the middle of a dark, rainy night breaking some baby out of a flaming vehicle.
In my experience, other companies produce better knives for that. There's nothing wrong with KAI making high quality, pretty knives for knife junkies. But there needs to be someone speaking facts about who they market to and why.
I personally fall into the "it wouldn't kill me to break or lose a good knife" and "I like to show off my knives" categories. It has nothing to do with me being a law enforcement officer or veteran. Simply put, it's not for military or law enforcement or a lot of those guys would be carrying the brand. Not saying that they don't fall into the hands of a person on the front lines with at least adequate results, just that they're not FOR those people doing those duties, per se, or more people doing those duties would have one.
Edit, I remember a guy that carried a 300 series, too, but he also had a spartan knife and a couple of other high end knives, he was also a guy who like to show off his knives.