The Glock trigger and firing pin safeties are supposed to prevent AD. However, like anything mechanical, they *can* fail. It's extremely unlikely, but the possibility is non-zero.
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"The right of no person to keep and bear arms in defense of his home, person and property,
or in aid of the civil power when thereto legally summoned, shall be called into question.."
Article 11, Section 13, CO state constitution.