Which of the following is a basic forcible entry technique used by firefighters?

• A. Forcing a door with a Halligan and flathead axe
• B. Drilling through concrete with a diamond core drill
• C. Using a sledgehammer to pry open a window
• D. Pushing a door inward with your shoulder

Answer: (A)

Forcible entry relies on quick, versatile tools that can breach a door with precision. The Halligan bar paired with a flathead axe is the classic basic method because it gives multiple reliable options in a single approach: you can pry the door away from the frame, spread it to defeat the latch, or drive through lock components if needed, all while maintaining control and speed. This combination works on many door types and is taught early in training for fast, safe access.

Drilling through concrete with a diamond core drill isn't a typical first-step entry tool; it’s a specialized method used for structural breaches or long-term access and requires more time, setup, and coordination. Using a sledgehammer to pry open a window lacks the precision and control of the Halligan-and-axe duo and can cause unnecessary damage and risk. Pushing a door inward with your shoulder is unsafe and ineffective for locked doors, potentially injuring you or causing the door to swing unpredictably.