Former Comptroller of Immigration, Solomon Leggjack, has refuted claims that Nigeria’s borders are porous, asserting instead that they are expansive and should not be blamed for the country’s security challenges.
Speaking at the launch of his book, Citizenship and Immigration Regulatory Framework in Nigeria, Leggjack emphasized that Nigeria has effectively recognized its citizens through legal and administrative immigration processes.
“Nigeria’s borders are not porous but expansive. They are not the primary cause of our security challenges,” he stated. Comparing the situation to the U.S.-Mexico border, he argued that border breaches occur not due to porosity but because of their vastness, which allows irregular migrants to exploit gaps in enforcement.
Leggjack highlighted ongoing efforts by the Ministry of Interior and the Nigeria Immigration Service (NIS) to enhance border security through e-border management systems aligned with global migration standards.
On his motivation for writing the book, he credited former mentors for honing his writing skills and expressed a desire to share his expertise with active and retired immigration officers.
Reviewing the book, academic scholar Adagogo Brown described it as an essential resource on cross-border movement laws and immigration management. He recommended it to international business professionals, legal scholars, policymakers, and anyone interested in understanding global migration regulations.

