Man confronts officer with large knife at airport

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An instruction to a smoker about restrictions at the airport escalates quickly as the man pulls a knife.

Police officer Peter Diaz sees him and has to make a decision.

The knife the man was holding turned out to be 11 and a half inches long.

Diaz calmly tries to convince the man to drop the knife and go to the floor.

At the same time, Diaz had his Taser trained on 39-year-old Calvin Tooks.

Tooks complied to a point and did not move. All the while, Diaz, who had notified dispatch, kept his one-sided conversation alive until backup officers arrived.

They did and another officer deployed his Taser and ended the incident.

Tooks was taken to the Clayton County Jail.

RELATED: Police: Man pulls knife on officers at Atlanta's airport