How Burglars Choose Targets: The Security Expert Analysis
Key finding: 85% of burglars abandon an entry that takes more than 60 seconds. Window bars make 60-second window entry physically impossible. Understanding the criminal decision process is how you defeat it.
The Four Factors Burglars Evaluate
Dr. Richard Wright's landmark research at the University of Missouri, replicated and expanded by subsequent criminology studies, identified four factors in burglar target selection. Understanding these factors reveals exactly why window bars are the most cost-effective physical countermeasure available.
Is there an easy entry point? Most burglars enter through unlocked or easily forced doors and windows. Ground-floor windows — particularly side and rear windows — score highest on accessibility. A window with no bar can be forced in under 30 seconds with minimal tools. A window with a steel bar cannot be forced in 8+ minutes.
Can anyone see the entry attempt? Rear and side windows, basement windows, and windows hidden by landscaping score favorably for burglars. The presence of window bars signals that someone has actively assessed and addressed this vulnerability — a signal that correlates with other security measures.
The single most critical variable. Every additional second spent at an entry point increases detection risk exponentially. 85% of opportunistic burglars will abandon any entry attempt that takes more than 60 seconds — not because they give up easily, but because the risk-reward calculation flips past that threshold. Window bars make 60-second window entry physically impossible.
Visible security hardware, cameras, and lighting communicate that the homeowner is engaged and has planned for intrusion. University of North Carolina research found that 83% of burglars look for quick-entry targets specifically — and 60% actively avoid homes where visible window security is present.
When Burglaries Actually Happen
FBI NIBRS data shows that residential burglaries peak between 10am and 3pm — daylight hours when most residents are at work. The cover of darkness matters less to burglars than the absence of occupants. This finding has two important implications:
- Physical barriers like window bars are the only security measure that functions without human presence. Cameras record; alarms alert — but neither prevents entry. A bar prevents entry whether you are home or away, awake or asleep.
- Most burglaries are not conducted by sophisticated criminals with night-vision gear. They are conducted by opportunistic individuals looking for the easiest available target in daylight. Visual deterrence and physical barriers are maximally effective against this population.