BOSTON —

The Boston Police Department released bodycam footage Monday of the arrest of Massachusetts State Rep. John Lawn, who was charged with operating under the influence of liquor after a July crash.

Lawn, 56, was arrested after he allegedly hit an SUV while driving around Beacon Hill during the early morning hours of July 16.

A witness flagged down police officers, who said Lawn had glassy, bloodshot eyes, slurred speech and was unsteady on his feet.

Body camera footage shows officers asking Lawn to perform a series of field sobriety tests that night, including walking in a straight line and following an officer's index finger.

At one point, officers ask Lawn to balance on one of his feet, and he tries to use a nearby fence to support himself.

"You can't use the fence; come on o

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