Duty holsters typically have multiple layers of retention, either the cripple knew what he was doing or the officer was using the wrong holster.
Even the best retention holster will give up if you jerk & twist on them hard enough.
Here's an example of a shitty holster (yewtu.be). You may defeat the mechanism eventually but not without destroying the gun or belt.
Let me guess, it's a serpa. 99% of Blackhawks stuff is garbage. I have 2 safariland locking holsters and the ubl might give up before the holster itself but either way you've still lost your sidearm.
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