Jammer-assisted burglary defeats alarms that treat silence as safety, and a fine a year later does not change that

What the notice records

On 22 September 2026 the US Federal Communications Commission's Enforcement Bureau released Notice of Apparent Liability DA 26-1015, proposing a $25,000 penalty against Gean Becerra Paez, Juan Becerra Araya and Alejandro Rodriguez Gonzalez, jointly and severally, for operating two radiofrequency jamming devices during an alleged burglary of a jewellery shop in Irving, Texas, on 24 September 2025 ^[1][2]. The notice finds apparent wilful violations of sections 301, 302(b) and 333 of the Communications Act and sections 2.805(a) and 15.1(c) of the Commission's rules ^[1].

The facts are short. Officers arrived at about 2 a.m. with the burglary in progress and detained three suspects, one inside the shop and two on the roof ^[1]. Inside they found two battery-powered jammers. The Irving Police complaint, quoted in the notice, describes “two 12-antenna multi-band radio frequency interference arrays” in use “to effectively interfere with all police communications until officers could disable the devices” ^[1]. The jammers appeared to be operating in the 700 MHz band “in a failed attempt to impede law enforcement” ^[1]. The licence the notice cites for the affected system provides communications to Irving police, fire and emergency services ^[1]. The three were arrested on state charges of burglary and interference with police communications ^[1].

One detail is more useful to a defender than the rest. The police logged the two jammers at 38% and 44% battery remaining, and the police report estimates that similar jammers run for about 80 minutes ^[1]. If the devices started fully charged, which the notice does not establish, that implies roughly 45 to 50 minutes of operation before officers switched them off. The notice does not record how officers came to be on scene.

What the penalty can and cannot do

The arithmetic is set out in full. The Bureau applied a $10,000 base forfeiture for unauthorised operation and $7,000 for interference to authorised communications, then adjusted the $17,000 total upward to $25,000 on the ground that a deliberate attempt to interfere with police communications during an illegal act is egregious ^[1]. The statutory ceiling is $25,132 per violation and $188,491 for a single act ^[1]. The respondents have 30 days to pay or file for reduction or cancellation, and the notice is being sent by first class and certified mail to their last known addresses ^[1]. It is expressly without prejudice to any criminal prosecution ^[1].

The timing is the finding. The complaint reached the Commission on the day of the arrests, and the notice was released 363 days later ^[1]. Wireless Estimator, which read the notice closely, points out that the case is secondhand, drawn entirely from the police report, and that a search of Dallas County's online criminal case records turned up nothing under the three names ^[4]. It also recalls that in 2016 the Commission affirmed a $34,912,500 forfeiture against C.T.S. Technology, a Chinese manufacturer and online retailer, for marketing 285 jammer models to US consumers ^[4].

None of this is a criticism of the Bureau for acting. It is a statement of what the instrument is. A forfeiture defends the licensee's right to the spectrum, after the fact. For the owner of the premises, the question that matters was settled in the minutes the jammers were running: did anything that depends on radio notice that it had gone quiet?

The target is the signalling path

The FCC's own guidance lists what jammers hit: cell phones, GPS, Wi-Fi, police radar, two-way radios and the control links of drones. Among the signs of jamming it names the inability to use multiple wireless systems on various bands, and blackouts confined to a specific area ^[3]. A 12-antenna multi-band array is built to produce exactly that. It is not aimed at one link. It is aimed at every radio path out of a building at once.

Commercial crews have extended the same logic to wires. On 29 June 2025, according to the Los Angeles County District Attorney, a group attempting roof entry into Rodeo Jewelry in La Verne, California, used signal jammers and cut utility lines and fibre optic cables, disabling 911 and internet service to more than one million homes and hospitals ^[5]. Seven defendants were charged, each facing eight felonies ^[5]. Radio paths jammed, wired paths cut: the attack is on the ability of the premises to report, not on any individual sensor.

The residential version is smaller and more common. Edina police in Minnesota suspected Wi-Fi jammers in nine burglaries over six months, and the local reporting cited jammer prices from $40 to $1,000 online ^[7]. LAPD's Wilshire division warned in 2024 of crews using Wi-Fi jammers against cameras and alarms, and told residents to hard-wire alarm systems ^[8]. In Glendale, a police sergeant described how jammed cameras left no visible gap in the footage, and what that meant for investigators:

It didn’t exist there, so there was no evidence.

Sgt Victor Jackson, Glendale Police Department, to ABC7 [6]

Southeast Asia has the vehicle variant. In September 2024 Thailand's Central Investigation Bureau arrested two men at a motorway rest area in Chachoengsao who, police said, used a remote jammer to block drivers' key fobs from locking their cars while an accomplice distracted them, then stole from the unlocked vehicles ^[13]. The mechanism is identical at a smaller scale: the victim presses a button, hears nothing wrong, and assumes the system acted.

Why silence has to be an alarm

A jammer does not defeat a sensor. It defeats the assumption that no message means nothing to report. A system that treats a missing message as quiet is defeated by design. A system that treats a missing or interfered path as an event turns the jammer into a trigger.

The European intrusion alarm standard for radio interconnections, EN 50131-5-3, contains both halves of that control: a requirement to detect failure of periodic communication and a requirement to detect interference ^[9]. Pen Test Partners' reading of the Grade 2 values is that a panel may go up to 120 minutes without hearing from a detector before reporting a failure, and that the interference test allows 30 seconds of jamming in every 60 ^[9]. Set against the Irving police estimate of about 80 minutes of jammer battery life ^[1], a two-hour supervision window can close after the burglars have left.

The standard is also only as good as the implementation. When Pen Test Partners transmitted a continuous 434 MHz signal at a range of panels, from consumer products to certified Grade 2 systems, no alarm signals got through and, for many of them, the jamming detection did not raise an alarm ^[9]. That testing dates from 2017, and products have moved since, but it is the right test to repeat on any installed estate: jam it and see what the monitoring centre receives.

The regional reading

Regulators in the region are working the supply side. Australia's ACMA audited seven online platforms over five weeks in April and May 2026 and found 361 non-compliant or illegal radiocommunications listings, down 69% from 1,162 the previous year, including 14 jammers; all were removed, most within 24 hours ^[10]. The ACMA attributes the fall to a campaign running since 2022 and a voluntary Equipment Safety Pledge for platforms ^[10].

In Malaysia, MCMC has treated jammers as illegal since at least 2002, when it warned that such devices can interfere with emergency services communications such as ambulance and fire and rescue ^[12]. Its June 2026 Op V380 seized 6,916 uncertified communications devices worth RM2.06 million from premises in Klang and Johor Bahru, sold through TikTok Shop and Shopee, among them wireless CCTV cameras and Wi-Fi routers; Regulation 16 of the Communications and Multimedia (Technical Standards) Regulations 2000 carries a fine of up to RM300,000, up to three years' imprisonment, or both ^[11]. That raid was not about jammers, but it shows the lever MCMC holds: certification, enforced at the marketplace.

Supply-side enforcement cuts casual availability. It does not reach an organised crew that brings its own equipment, and the Thai case shows that a single device is enough ^[13]. For banks, jewellers, logistics yards and data centres in Malaysia and its neighbours, the working assumption should be that a jammer can be on site, and the design question is what the premises report when it is.

What to do

• Configure loss of supervision and detected interference as alarm conditions, not trouble conditions, whenever the system is armed. Check the panel configuration rather than the datasheet, and require interference detection to EN 50131-5-3 at the grade the risk demands ^[9].
• Shorten supervision intervals for high-value sites so that a silent detector or communicator is reported within minutes. A window measured in hours outlasts a battery-powered jammer ^[1][9].
• Supervise the signalling paths from the monitoring centre end, across diverse media. The simultaneous loss of radio, cellular and wired paths from one site should be handled as an attack in progress, because that is what La Verne looked like ^[5].
• Hard-wire cameras where possible and record locally, so that footage survives a jammed uplink ^[6][8].
• For police and security operators, preserve jamming evidence at the scene: device location, antenna count, battery state and times, as Irving did. It is what the regulator's case was built from ^[1]. In the US, report through the FCC's PSIX-ESIX portal ^[3].
• For drivers, confirm that a car is locked by trying the door. A jammer at a car park removes the lock signal without any indication on the key ^[13].
• For regulators, publish marketplace audit counts by device class, as the ACMA does, so that the supply trend can be measured ^[10][11].

Domain close

The Irving notice is a routine piece of spectrum enforcement, and it will probably be collected with some difficulty, if at all. Its value is the record it preserves: two multi-band arrays, carried in by hand, silencing every radio path out of a shop for what may have been most of an hour. The spectrum regulator can penalise that afterwards. Only the alarm can respond to it at the time, and it will only do so if it has been designed to treat silence as a signal.