Police Magazine Logo
MenuMENU
SearchSEARCH

Combating Human Smuggling

A storm-water channel connecting the higher-elevation Nogales, Sonora, brings runoff into Nogales, Ariz., and can also deliver illegal immigrants willing to risk drowning when the waters rise.

Combating Human Smuggling

Smugglers use vehicle "traps" to transport undocumented aliens. Photo courtesy of FBI.

3 min to read


A storm-water channel connecting the higher-elevation Nogales, Sonora, brings runoff into Nogales, Ariz., and can also deliver illegal immigrants willing to risk drowning when the waters rise.

That's not the only way people come over the border. The easiest is through the fence. The border fence is made of 25-foot-high steel girders and it snakes off into the distance on the hilly outskirts of Nogales (Ariz.). But it's little hindrance to determined smugglers. Border Patrol agents refer to it as a "30-second delay."

Ad Loading...

As a local law enforcement agency, the Nogales PD defers to Border Patrol agents to perform the primary security duties at checkpoints such as vehicle searches and ID checks.

Yet, the department has secured manpower funding via Operation StoneGarden, a Department of Homeland Security program with the stated goal of improving coordination among local, state, and federal law enforcement agencies to secure the border and cut down on human smuggling.

StoneGarden allows Nogales officers to work border checkpoints alongside U.S. Customs and Border Protection agents and enables overtime pay for fence-line patrols.

On a recent shift, Officer Mario Lopez checked bags and IDs of pedestrians leaving the U.S. for Mexico at one of two entry points in town. State-issued IDs or passports are permitted. Travelers who present a Mexican matricula consular (voter credential) are turned away.

Lopez supports S.B. 1070, Arizona's tough immigration law that's been struck down by a federal judge and has come under fire by the Obama administration. He favors the law because he believes it may spur further federal support for law enforcement.

Ad Loading...

"It's a decent law," Lopez says. "However, I do have some reservations that it's just adding to our workload. Hopefully, this will make President Obama take some action."

The officer also commented on the public outcry to the law that may be an overreaction.

"We don't just walk up and start nabbing people," Lopez adds. "We have to establish the fact that the person is illegal."

Nearby, fellow Nogales officer Robert Fierros checks outbound vehicles passing through the checkpoint to mostly look for large quantities of cash, guns, ammunition, stolen vehicles, felons, and other wanted persons. On federal property, no probable cause is needed; Fierros can stop any vehicle for any reason.

Earlier in the year, Fierros stopped a vehicle with a 20-year-old male driver and a 16-year-old female passenger. The male was a wanted felon who had abducted the teen and was attempting to smuggle her to Mexico for sex slavery.

Ad Loading...

The girl looked frightened and the man's ID contained a fake address in Arizona. And their boyfriend-girlfriend story quickly fell apart under further questioning.

"StoneGarden allows municipal officers to network with federal officers," Fierros says. "You're joining powers, and it really does show results."                                          

Related Articles:

Patrolling the Broken Border

Hidden Drugs In Vehicle 'Traps'

Subscribe to our newsletter

More Patrol

Black background with image of police car light bar, logo for POLICE Topics, Tactics & Tips, and headline What are the latest law enforcement boots from Garmont Tactical?
Patrolby Wayne ParhamFebruary 25, 2026

Garmont Tactical’s LE Boot Lineup

In this video, we get a look at the latest law enforcement boots from Garmont Tactical, both for men and women. Kyle Ferdyn, sales manager, showcases four of the latest boots.

Read More →
Person in protective CMRN suit and breathing gear.
PatrolFebruary 18, 2026

Avon Protection Launches EXOSKIN-S2 High-Performance CBRN Protective Suit

With the commercial availability of Avon Protection’s EXOSKIN-S2, users now have increased options for their protective suit requirements across the spectrum of CBRN threat environments.

Read More →
Sky background with logos for Versatern and Aloft
PatrolFebruary 18, 2026

Versaterm Acquires Aloft to Unlock a New Era of Drones for Public Safety

Versaterm has acquired Aloft, an FAA-approved Unmanned Service Supplier (USS) that specializes in real-time airspace intelligence and flight authorizations.

Read More →
Ad Loading...
Clooudy sky background with a lot of blue, logo for DroneSense, and dates and location of an upcoming event.
PatrolFebruary 11, 2026

Versaterm Launches Innovation Summit for Public Safety Drone Operations

The two-day DroneSense Innovation Summit by Versaterm will bring together public safety and industry experts to define best practices for scaling drone operations.

Read More →
Thumnail for video series POLICE Topics, Tactics & Tips featuring a black background with police car lights and headline What Makes a Good LE Boot?
Patrolby Wayne ParhamFebruary 11, 2026

What Makes a Good LE Boot?

Learn what makes a boot good for police officers as POLICE visits with Kyle Ferdyn, of Garmont Tactical, who explains the features of boots and why each is needed in an LE boot.

Read More →
Red fabric background with blue and white Folds of Honor logo.
PatrolFebruary 4, 2026

Folds of Honor Opens Scholarship Application for Children and Spouses of Fallen or Disabled Service Members and First Responders

The application period for the Folds of Honor scholarship program is now open through the end of March. Scholarships support students from early education through postsecondary studies, easing the financial burden for families who have given so much in service to others.

Read More →
Ad Loading...
Closeup of hands reaching to pick up a ballistic helmet and a Team Wendy logo in a white box top center in the image.
PatrolFebruary 4, 2026

Team Wendy Now on GovX: Faster Verification and Discount Access for Eligible Professionals

With GovX verification now integrated directly into the Team Wendy checkout experience, eligible customers can confirm their status in just a few clicks and have the discount applied automatically.

Read More →
backgroudn image of desert with inset 5.11 logo and images of pant and boot.
PatrolJanuary 28, 2026

5.11 Debuts 2026 Footwear & Apparel at SHOT Show

5.11 showcased new apparel and footwear products during SHOT Show 2026, including new color options for the A/T Boa Lite Mid Boot and the Founder’s Jacket.

Read More →
Three tactical backpacks set against a desert background with an inset logo for 5.11.
PatrolJanuary 21, 2026

5.11 Debuts New Load-Bearing Gear at SHOT Show

5.11 launched a variety of new load-bearing gear, ranging from backpacks to chest packs, designed for training, travel, and everyday readiness, this week during SHOT Show 2026.

Read More →
Ad Loading...
Blue background with Streamlight logo at top and inset images of one handgun light, two rifle lights, and one handheld light.
PatrolJanuary 21, 2026

Streamlight Launches the Rechargeable TLR-3X & Other Lights at SHOT Show

Streamlight launched the TLR-3X and TLR-3X USB, two new weapon lights, and an assortment of other new lights during SHOT Show 2026.

Read More →