March 16 (UPI) -- Customs and Border Patrol Chief Greg Bovino, who spearheaded several operations in the Trump administration's crackdown on immigration, plans to retire at the end of the month.

He drew widespread criticism for his involvement in immigration operations across the country -- most notably in Chicago, Charlotte, New Orleans and Minneapolis -- because of tactics used when apprehending alleged illegal immigrants, sources told CNN, CBS and NBC.

In addition to reactions from local leaders and residents in the communities he and his agents traveled to, judges have admonished him for actions taken during operations -- including heavy-handed tactics and indiscriminate arrests.

Over the course of the last year, he also bristled when he was told to stop using chemical agents, gassing crowds of protesters and to switch to a targeted approach and stop asking random people -- sometimes based only on skin color or accent -- for their immigration status.

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