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A $50,000 offer could have bought silence for many Nigerians; instead, it became one of the episodes that would define Gambo Aliyu’s career.
The story of Aliyu’s uncompromising approach did not begin at Tin Can Island Port. It was forged over more than three decades in the Nigeria Customs Service, where diligence, professional competence, courage and an uncompromising attitude towards corruption repeatedly shaped his career.
After a nine-month stint at the helm of the Federal Operations Unit (FOU), Zone A, Comptroller Aliyu has just retired; but his career offers an opportunity to examine the man behind the uniform – his leadership philosophy, professional convictions and the principles that have guided his journey.
For Comptroller Gambo Iyere Aliyu, leadership in the Nigeria Customs Service was never an abrupt chapter that began with his appointment to FOU Zone A. Rather, it was the culmination of a career through several strategic formations and increasingly demanding responsibilities.
Born in the United Kingdom more than five decades ago, Aliyu joined the Nigeria Customs Service in 1991. He built expertise in enforcement, trade compliance, security and crisis management before attaining the rank of Comptroller in 2024. He is also a Fellow of the Association of Counterterrorism and Security Professionals in the United States, a Certified Threat Analyst and a Physical Security Manager. Beyond the designations and professional qualifications is a reputation forged in the field.
A Reputation Forged Under Pressure
One of the strongest testimonies to Aliyu’s character comes from ACG Charles Edike (Rtd), his former boss at Apapa Port Command.
Edike remembers Aliyu from his days as a Chief Superintendent of Customs, describing him as one of his finest officers.
“He is someone very competent and with no fear at all,” Edike recalled, noting that Aliyu routinely prepared documents and demand notices that were difficult to fault. So strong was his confidence in Aliyu that he said he could trust any document that passed through him.
That uprightness, however, came with a price.
According to Edike, some freight forwarders uncomfortable with Aliyu’s strictness allegedly mobilised to have him removed from a strategic position. They succeeded temporarily, but Edike wrote twice to the Comptroller-General seeking his reinstatement and attached evidence of his performance.
When he discovered that the letters were being blocked, Edike sent the next appeal through the CG’s Secretary, who personally delivered it. The appeal succeeded and Aliyu was reinstated.
For Edike, the episode revealed an officer whose professional standards could provoke resistance from those who benefited from weak enforcement, but whose competence was worth defending.
Years later, another incident reinforced that reputation.
While serving as Deputy Comptroller of Enforcement at Tin Can Island Port, Aliyu and his team intercepted arms, drugs and counterfeit pharmaceuticals. During that period, Gambo rejected a $50,000 bribe offer and received commendation from the Comptroller-General.
The incident became an important part of the professional narrative surrounding him and helps explain why integrity would later become central to his leadership.
Oyo/Osun: A Short Stint, Measurable Impact
Before FOU Zone A, Aliyu had a brief tenure as Customs Area Controller of the Oyo/Osun Area Command, assuming office on September 3, 2025, after Comptroller Joseph Olugbuyi Adelaja.
During 2025, Oyo/Osun generated N77.88 billion between January and October, a 17.5 per cent increase over the N64.27 billion collected in the corresponding period of 2024. The command also recorded seizures with a Duty Paid Value of N818.79 million between June and October, including foreign parboiled rice, Premium Motor Spirit, used tyres, used clothing, cannabis, pharmaceuticals and vehicles.
Although Aliyu led the command for only part of the period, he attributed its performance to the commitment and professionalism of his officers rather than individual heroics.
That response offered an insight into his leadership philosophy: results matter, but sustainable results depend on people.
He also emphasised collaboration with security agencies and border communities, particularly in tackling petroleum-product smuggling and other transborder crimes.
By December, he was redeployed to FOU Zone A. His successor, Deputy Comptroller Moses Wale Adewole, described his tenure as one marked by exemplary leadership, dedication and significant contributions.
Into The FOU Zone A Crucible
On December 10, 2025, Aliyu took over from Mohammed Salisu Shuaibu, who had been elevated to Assistant Comptroller-General.
FOU Zone A covers one of Nigeria’s busiest enforcement environments, spanning the South-West and confronting sophisticated smuggling networks operating through land borders, waterways, roads and commercial channels.
Aliyu’s response was built around a three-point leadership framework: Change Management, Compliance Management and Reputational Management.
His concept of change went beyond directives. He sought attitudinal reorientation among Customs officers, traders and border communities, insisting that officers internalise professionalism, discipline and service values while stakeholders understand that Customs operations are governed by national interest and the rule of law.
Compliance, he said, would be firm but intelligent. Those who comply should be facilitated; those who deliberately evade their obligations should face consequences.
Reputation, meanwhile, would rest on transparency, accountability and ethical conduct.
The philosophy aligned with the reform agenda of Comptroller-General, Dr. Bashir Adewale Adeniyi MFR, particularly his emphasis on competence, professionalism and intelligence-led Customs administration.
How Aliyu Leads
For Aliyu, sustainable reform begins with mindset change. He believes Customs officers must internalise professionalism, discipline and service values, while stakeholders must understand that Customs operations are guided by national interest and the rule of law.
His approach to leadership therefore goes beyond issuing directives; it is about reshaping behaviour, strengthening institutional culture and building a workforce capable of delivering results with a clear sense of responsibility.
On compliance, Aliyu believes firmness must be balanced with fairness and intelligence.
“There must be a balance between enforcement and facilitation of legitimate trade,” he noted, stressing the importance of risk assessment in identifying high-risk activities without unnecessarily obstructing compliant operators.
For Aliyu, integrity is inseparable from accountability and transparency.
“Accountability and transparency have a lot to do with the perception of the Service. We have a social contract with Nigerians, and we must deliver value without losing sight of our core mandate in the trade value chain,” he said.
He believes the manner in which Customs officers exercise their powers is as important as the results they achieve, with discipline, forthrightness and ethical conduct essential to preserving public trust.
From Reactive To Predictive Enforcement
Within months, Aliyu began translating the philosophy into operational strategy. He advocated moving FOU Zone A from reactive to predictive enforcement, using intelligence, technology, risk assessment and geospatial tools to anticipate smuggling patterns.
Within its first five weeks under his leadership, the unit recorded 144 interceptions involving goods with a Duty Paid Value of about N3.3 billion.
By May, it reported 473 smuggling attempts foiled within eight weeks, including 8,794 bags of foreign parboiled rice, 22 used vehicles, 1,863 used refrigerator compressors and 328 bales of used clothing.
The enforcement net also extended to illicit drugs and environmental crime. In one operation, operatives arrested a 71-year-old man with 6.35kg of cocaine, estimated at N2.35 billion, concealed in a Toyota Highlander.
The unit also intercepted 130.84kg of elephant tusks in an operation conducted with environmental and wildlife agencies.
By August, FOU Zone A reported 220 consignments of prohibited and smuggled goods valued at N3.24 billion, alongside N728.98 million in revenue recoveries. The seizures included foreign rice, synthetic cannabis, Ghanaian Loud, crystal methamphetamine, Tramadol, pharmaceuticals, PMS, poultry products, used clothing, tyres and elephant tusks.
The figures reflected Aliyu’s effort to make intelligence central to enforcement rather than rely exclusively on physical patrols and checkpoints.
The Human Cost Of Enforcement
The figures have also come at a cost. On February 3, 2026, Assistant Superintendent of Customs Mustapha Akiyode was killed during an ambush by suspected smugglers along the Ilara-Ijoun axis in Ogun State. Aliyu described the incident as a painful reminder of the risks confronting officers in the field.
He subsequently intensified engagement with the security architecture around the Ogun corridor, visiting the National Drug Law Enforcement Agency and Nigeria Police Force commands while engaging traditional leadership.
The objective was to strengthen intelligence sharing, joint patrols and coordinated operations against drug traffickers and smuggling syndicates.
His approach increasingly combined enforcement with engagement, reaching security agencies, traditional rulers, border communities, journalists and maritime stakeholder groups, including the Maritime Reporters Association of Nigeria.
The message was clear: effective border control cannot be achieved by Customs acting in isolation.
Enforcement Without Strangling Legitimate Trade
One significant dimension of Aliyu’s tenure has been his insistence that anti-smuggling enforcement should not obstruct legitimate commerce.
Despite his hardline position on smuggling, he has consistently described FOU Zone A as a partner in trade facilitation. His argument is that legitimate traders should have nothing to fear from intelligent enforcement.
He, therefore, embraced risk assessment, post-clearance audit and intelligence collaboration to identify non-compliant operators while reducing unnecessary intervention in legitimate transactions.
Aliyu also fully supported the Time Release Study, which he described as capable of identifying bottlenecks, reducing cargo dwell time and improving supply-chain efficiency.
Beyond trade, Aliyu underscored the security dimension of Customs operations, warning of the nexus between illicit drugs, arms smuggling and criminality. With banditry, terrorism and kidnapping posing national security challenges, he has argued that tighter border controls are essential to protecting both the economy and lives.
The Aliyu Factor
There is a discernible thread running through Comptroller Gambo Aliyu’s career.
From the Chief Superintendent whose documents his former boss trusted without hesitation, to the officer whose integrity allegedly provoked resistance from some freight forwarders; from the enforcement commander who rejected a $50,000 bribe, to the Area Controller whose tenure in Oyo/Osun coincided with improved revenue performance; and finally to the FOU Zone A Comptroller deploying intelligence, technology and inter-agency cooperation against sophisticated smuggling networks, Aliyu’s career has been defined by a consistent belief in professional standards.
His former boss, ACG Charles Edike, perhaps captures the journey best. He watched Aliyu’s career from the days when powerful interests sought his removal from a strategic office. He watched him continue to rise. Years later, he described the recognition of Aliyu’s achievements as proof that the officer had remained an excellent Customs professional.
Perhaps, the most enduring measure of Comptroller Aliyu’s career is not the number of seizures made or awards received, but the standard he leaves behind: do the job, protect the system and do not compromise the standard.
