I'd say yes. The United Nations Office on Drugs and Crime outlines the impetus for its report:

Trafficking in persons and corruption are closely linked criminal activities, whose interrelation is frequently referred to in international fora. Yet, the correlation between the two phenomena, and the actual impact of corruption on trafficking in persons, are generally neglected in the development and implementation of anti-human trafficking policies and measures. This lack of attention may substantially undermine initiatives to combat trafficking in persons and prevent the customization of responses as needed. Only after recognizing the existence and the effects of corruption in the context of human trafficking, can the challenges posed by it be met.

Most common among the corrupt practices used in trafficking persons, according to the report, are bribery and the abuse of power by border and visa officials. This chain extends farther, however, in some cases widening to include actors such as law enforcement and security officials, as well as parliamentarians and embassy staff.

Above quotes are from a published UNODC report dating back to 2011: The Role of Corruption in Trafficking in Persons (pdf)

Keep on digging!