Crime Prevention is a Team Sport

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   We at the Glendora Police Department want to partner with the community to maintain our low crime rate.  We encourage citizens to call us anytime they see or hear something suspicious.  When we get your call we will do our best to capture the criminals victimizing our neighborhoods.  This often starts with YOU!  Again, please call us and together we will keep Glendora safe because Crime Prevention is a Team Sport.


During a majority of break-ins, burglars gain access to the home through unlocked doors or windows. In addition, many homeowners forget to set their security system. While making sure to lock the doors and set the alarm are the foremost priority in securing any home, homeowners do have other precautions they can take.

Alarm systems should be connected directly to the alarm company's central monitoring station, which can alert law enforcement if the alarm is triggered.

Installing a back-up cellular dialer in case a burglar cuts the power or the standard phone lines enables the system to still contact the monitoring station.

Alarm systems which incorporate motion sensors and/or glass break sensors can help first responders and residents know if an intruder has actually gained access to the premise.

Displaying the signage provided by the alarm company serves as an initial deterrent for thieves.

Making sure the alarm system's central panel is located in a locked cabinet or an indoor utility room prevents would-be invaders from tampering with the system.


Sufficient lighting, both internal and external, can help deter thieves from even targeting a home. Burglars typically select a poorly lit home, as darkness affords additional cover from watchful neighbors or passers-by.

Motion detection lighting alone only activates once a thief's movement is detected; installing low-wattage dusk-till-dawn light fixtures, which emit a soft glow around the perimeter of the home all night, insures that thieves cannot conceal themselves in the shadows. The addition of sensors that shut off the lights when the sun rises and energy saving fluorescent or sodium-type light bulbs makes this an affordable and effective light deterrent.

Using basic timers for interior lamps set to alternating times, gives the appearance of movement throughout the house while it is unattended.  Adding t.v.’s or radios on timers is another great deterrent, giving burglars the impression that someone might be at home.


With some very simple window and door locking systems, homeowners can drastically restrict the accessibility of their home. With recent advances in locking mechanisms, some additional alternatives are also available to today's homeowner.

Installing window locks on all ground floor windows prevents the window from being opened far enough for someone to fit through.

The addition of a simple closet rod to the track of sliding glass doors provides reinforcement to the standard lock.

Biometric locks , which provide access by scanning a finger print, have become much more affordable lately and can prevent lost or stolen keys from being used by burglars.

The glass in windows and doors can very often be a point of weakness as well. Security window films are affordable, and can provide an extra layer of defense from thieves attempting to smash a window to gain access to the home. While a burglar may be able to muster enough force to eventually smash the window, the repeated attempts require a lot of attention-grabbing blows. Assuring the home has proper doors made from solid wood or metal, rather than a hollow-core style, along with 3.5 inch long steel screws to fasten the hinges to the door frame, will stand up to most breach attempts.

The ability to see the outside of an exterior door is also very important. If an abutting window cannot provide a view of the doorstep before opening it, a peep hold can easily be installed.


Believe it or not, appropriate landscaping can help deter intruders from accessing windows, while maintaining an aesthetic appeal.

Keeping trees and bushes trimmed back from the house and windows helps diminish the likelihood of an intruder using the shrubs as cover. Tree limbs should also be trimmed, to prevent an intruder from using a tree to access a second story entry point.

Planting low-growing sharp or thorny bushes such as holly, rose shrub, or barberry under windows, or adding gravel or landscape rock which makes for noisy footing, are also good ways to deter thieves from attempting to gain access to windows.


Garages are favorite targets for thieves, not only because they are often unoccupied, but because they often offer a direct and unlocked entry to the remainder of the home. A few simple countermeasures can help greatly deter an intruder's ability to access the garage.

Always keep the garage door closed; an empty garage or a missing vehicle can alert thieves that the home is unattended.

Change the factory set codes on the door's remote control often, so thieves cannot open the door with a store bought remote.

Adding motion and glass break sensors to all windows in the garage will also provide added warning of an attempted break-in.


Layer 1 – The Perimeter

Because burglars usually choose their targets by scoping out the property first, it’s important to have a layer of security around the perimeter of your residence. Such security measures will act as an initial deterrent for would-be intruders. So be sure to do the following:

  • Prominently display alarm company signage, Neighborhood Watch, and/or other crime prevention program signs around your residence.
  • Install adequate LED lighting around your doorways, exterior hallways, stairwells and sidewalks, including lights with motion sensors.
  • Look for areas around your residence in which perpetrators can hide. Cut back bushes and other landscaping and increase lighting to eliminate dark, shadowy areas.

Layer 2 – Make it Appear Someone’s Home

Many burglars want to get in and out of a home without being seen. So breaking into a home that is not occupied is what burglars prefer. By installing security devices that help give the impression that someone is home even when you’re not, you can further decrease the chance of your home becoming a target. Consider the following:

  • Leave a radio or TV on whenever you leave your home.
  • Install a couple of light timers inside your residence.
  • You can also use timers to turn on a radio or television while you’re away.
  • If you have a spare vehicle, consider parking it in the driveway instead of in the garage. 

Layer 3 – Stop Intruders in Their Tracks

Some criminals are bolder than others. Although some will be discouraged by the above deterrents, others may not. So having security measures in place that make it extremely difficult for an intruder to break into your home is crucial. The following security measures and devices are effective ways to stop an intruder:

  • Peepholes with wide-angle lenses that are within viewing level.
  • Doors constructed of solid wood or metal and use only door hinges that are reinforced with 2- to 3-inch steel screws.
  • Insert solid wooden closet dowels or metal rods in between the tracks of all horizontally sliding windows and patio doors.
  • Windows that are reinforced with glass protection film. These highly effective security window films make breaking the glass much more difficult.
  • Obscenely loud alarm systems that contain glass break sensors, motion detectors, back-up cellular dialer, wireless panic buttons, and external strobe lights.
  • Install quality dead bolts and security door braces that have the ability to withstand up to 1800 lbs of pressure. Both will make it extremely difficult for an intruder to kick down your door.
  • Dogs are man’s best friend, but not a burglar’s best friend.  A large dog with a loud or aggressive sounding bark can make would-be burglars think twice about choosing your home as their next target.