Former Chiba Prefectural Police Inspector Moritomo Moritomo Explains the Optimal Solution for Burglary Prevention! "Instant Notification with Monitoring Cameras" x "Buying Time with a Safe" - A Two-Pronged Approach. "Alert & Delay" Home Defense is Effective.

Image is for illustrative purposes (AI-generated) JTW082GEL Big Bolt Series JTW Model

Master Lock Sentry Japan Co., Ltd. (Headquarters: Higashi-Gotanda, Shinagawa-ku, Tokyo; hereinafter referred to as "MLSJ") is considering burglary prevention methods with former Chiba Prefectural Police Inspector Moritomo Moritomo, in preparation for the summer vacation period when people are away from home for longer periods.

This time, Mr. Mori explained the "basics" of crime prevention against home intrusions such as burglary and sneak theft.

For modern crime prevention, the combination of security cameras, remotely monitorable surveillance cameras, and safes is highly recommended not only for burglary and sneak theft but also for intrusive crimes like "Tokuryu" (※).

To deter criminals, it is necessary to have outdoor security cameras to make the house appear to have a high level of security awareness from the outside. In addition, as an idea to increase defensive power in case of intrusion, surveillance cameras can be utilized as indoor security cameras. Surveillance cameras that can monitor even when you are not at home are effective, and it is recommended to choose cameras with multiple functions such as instant notification to the homeowner upon detecting intrusion, ability to call the police, or sounding an alarm and turning on lights. Safes are the "final line of defense" that can impose additional time constraints on burglars.

※ Anonymous, fluid crime group

Amazon Prime Day will be held from Friday, July 10, 2026, to Tuesday, July 14, 2026. Why not take this opportunity to purchase security items, including MLSJ products, at a great price and enhance your home security?

MLSJ Amazon Shop URL: https://x.gd/dlg7j

[Former Detective Explains] For home intruders, use monitoring cameras for instant notification & safes for time delay.

● Make your home appear to have a high level of security awareness.

Most criminals scout houses before invading and target "houses that seem easy to enter." First, it is important to make your own home appear to have a high level of security awareness. For detached houses, this includes not creating hiding places around the house with plants, laying gravel to make footsteps audible, and removing any means to climb to the second floor. Furthermore, installing multiple outdoor cameras is very effective. Few criminals open the front door to enter; they target windows and other areas that are less visible. It is recommended to install outdoor cameras in areas of the house that appear easy to intrude.

● Outdoor security cameras alone are insufficient, as blind spots can be exploited.

On the other hand, are outdoor cameras alone perfect for intrusion countermeasures? If you ask, the answer is actually no. Modern burglars are becoming more sophisticated, checking the locations of security cameras in advance and looking for blind spots for entry points. Therefore, indoor security measures are also necessary, assuming a worst-case scenario of intrusion.

● "Monitoring cameras" for babies and pets are recommended for indoor security measures.

"Monitoring cameras," used for watching babies and pets, can be applied to intruder detection. With features like motion sensors and sound detection, they can notify your smartphone when someone enters the house, and if they have the function to remotely check video, you can quickly report to the police by instantly detecting an intrusion even if a burglary occurs while you are out. Additionally, if the camera has functions like sounding a warning or flashing a light, it can alert the intruder that the homeowner has detected their presence, making them aware of the time limit.

If you have a camera that is no longer needed as your baby has grown, you can reuse it. For example, during Amazon sales, you can purchase one for as little as a few thousand yen.

● The "final line of defense" that is active after an intrusion is "buying time" with a safe.

However, even if an intrusion is noticed and reported, it takes an average of 8 minutes and 24 seconds (※1) for the police to arrive nationwide, and it tends to take even longer in rural or suburban areas farther from police stations or substations.

Therefore, buying time after an intrusion is also very important. Safes are heavy and cannot be easily carried away, and it takes a certain amount of time to pry them open. Therefore, they can impose further time constraints on intruders and serve as the final line of defense. Most criminals, including those involved in "Tokuryu" intrusions, sneak thefts, and burglaries, dislike time-consuming tasks. It is said that about 70% of intruders give up if it takes more than 5 minutes, and almost all give up if it takes more than 10 minutes. (※2)

By combining home security items with a safe, you can not only enhance the security of your home but also create an "impenetrable fortress" to protect your valuable assets. Deter intrusions with security goods like outdoor and indoor cameras, and if an intrusion is unfortunately allowed, protect your important assets with a safe.

(※1) National Police Agency Response to Incidents and Accidents https://www.npa.go.jp/hakusyo/r04/honbun/html/y2232000.html

(※2) Yamanashi Prefectural Police https://www.pref.yamanashi.jp/police/p_anzen/sinnyusettou_bousi.html

Profile Moritomo Moritomo, Former Inspector of Chiba Prefectural Police

Former police inspector with 20 years of experience as a detective, contributing to the resolution of various cases including murder, robbery, fraud, and embezzlement.

Currently active in lectures, television appearances, and writing on crime prevention for "Tokuryu" and other topics at over 180 locations nationwide.

Author and supervisor of numerous works, including "Book to Protect the Elderly from Nearby Dangers (Ikeda Shoten)".

Reference Information on Intrusion Theft

According to the National Police Agency's "Sumairu Bōhan 110" (Home Security 110), residential burglaries have generally been on a downward trend since 2004, but in 2025, there were 17,152 cases, a 7.2% increase from the previous year. Intrusion theft overall also increased in 2025 to 47,233 cases, a 9.8% increase from the previous year.

The National Police Agency has also recently issued a warning about malicious intrusion theft and robbery incidents where windows are broken to force entry, regardless of whether residents are home or not.

Master Lock Sentry Japan Products and Security

Provides flawless, high-level security to protect owners from worries about unauthorized opening, destruction, prying, and theft.

Big Bolt embedded in a thick door

MLSJ's unique Big Bolt (thick bolt) enhances the robustness of the door itself, achieving high security when locked and protecting valuables.

※ Adopted in the Big Bolt Series.

Hinges with pry-resistant mechanism

Various measures are taken to make unauthorized attacks difficult, such as installing hinges on the inside of the door or covering them with metal plates, making them difficult to destroy even if attacked.

※ Specifications vary by model.

Double Lock for Double Peace of Mind

Dual locking system with a keypad or dial lock and a key. While offering high security, the design is easy for owners to operate.

※ Specifications vary by model.

Bolt-down for theft prevention

MLSJ's unique service offers an optional bolt-down kit that allows the safe to be fixed to the floor.

※ Image of the kit is for illustrative purposes.

※ This service is only available for the Big Bolt Series.

※ Waterproof performance is not guaranteed when fixed to the floor, etc.

MLSJ Amazon Shop URL: https://x.gd/dlg7j

JTW082GEL Big Bolt Series JTW Model

This safe features extra-thick bolts, 60% thicker than conventional ones, and a pry-resistant structure, maintaining its security. It has passed rigorous UL fire tests, heating up to 1010°C for 2 hours, and a digital media fire test, offering superior fire resistance, water resistance to protect against fire extinguishing water and submersion, and other top-tier performance.

★ Specifications: 2-hour fire resistance and media fire resistance, 24-hour water resistance, resistance to rapid heating and explosion, high security, A4 file storage, double lock, drop impact resistance, interior LED

External dimensions: Width 415 x Depth 491 x Height 348 mm

Internal dimensions: Width 310 x Depth 280 x Height 244 mm

Weight: 47 kg

Capacity: 22.8 L

Price: Open price

Product HP: https://masterlocksentry.jp/sentry/product/jtw082gel/

JPW082HSB PREMIUMCROSS Series

The PREMIUMCROSS Series is a meticulously crafted safe that excels in all aspects: the latest security performance, ease of use, design, and support system.

★ Specifications: 1-hour fire resistance and media fire resistance, 24-hour water resistance, resistance to rapid heating and explosion, high security, A4 file storage

External dimensions: Width 417 x Depth 478 x Height 348 mm

Internal dimensions: Width 319 x Depth 292 x Height 244 mm

Weight: 25 kg

Capacity: 22.9 L

Price: Open price

Product HP: https://masterlocksentry.jp/sentry/product/jpw082hsb/

JFW205BXL Big Bolt Series JFW Model

Introducing a fingerprint authentication model to the JFW fire and water-resistant safe, the standard model for disaster preparedness. This is a simple yet highly secure lock system (also usable with a keypad) where you can unlock by touching the sensor with the registered finger. Combined with high-security features such as thick bolts and pry-resistant hinges, it provides even greater peace of mind.

★ Specifications: 1-hour fire resistance and media fire resistance, 24-hour water resistance, resistance to rapid heating and explosion, high security, A4 file storage, double lock, drop impact resistance, interior LED, fingerprint authentication

External dimensions: Width 472 x Depth 491 x Height 603 mm

Internal dimensions: Width 365 x Depth 280 x Height 498 mm

Weight: 56 kg

Capacity: 56.6 L

Price: Open price

Product HP: https://masterlocksentry.jp/sentry/product/jfw205bxl/

[Master Lock Sentry Japan Co., Ltd. Company Overview]

Representative Director: Ryohei Ando

Location: 4F, NMF Takanawa Bldg., 2-20-4 Higashi-Gotanda, Shinagawa-ku, Tokyo 141-0022

Official HP: https://masterlocksentry.jp/

Business Activities: Import and sales of Master Lock/Sentry brand products in Japan, and marketing activities