The preferred method for forcing commercial and high-security doors is what?

Forcing entry through the lock is generally the preferred method for commercial and high-security doors. This technique minimizes damage to the door and surrounding structure while allowing firefighters to gain access quickly. High-security doors often utilize advanced locking mechanisms that might be more susceptible to being manipulated or defeated without causing significant damage. By targeting the lock directly, firefighters can efficiently open the door without compromising the integrity of the door itself or creating additional hazards in the vicinity.

Other methods, such as breaching through the door or wall, may result in unnecessary damage and can complicate access, especially in situations where preserving the structure is essential. While through-the-door techniques may sometimes be employed, they can take longer and may not be as effective against tougher materials or locks found in high-security systems. Thus, forcing entry through the lock stands out as the most effective and least damaging option for these scenarios.