Authorities say the Georgia Bureau of Investigation has agreed to join the probe into a bystander's video of a police officer beating a homeless woman inside an Atlanta area convenience store.

DeKalb County Police reopened a use of force investigation after local media broadcast video showing the officer striking 38-year-old Katie McCrary at least 10 times.

The police report says McCrary had pushed the officer, who was questioning her about begging customers for money at the store in Decatur, Georgia.

Police said McCrary was taken to a hospital after her June 4 arrest. She's charged with obstructing law enforcement and was served a criminal trespass warning.

DeKalb County Police Chief James Conroy tells The Atlanta Journal-Constitution that authorities requested the state agency's help after a meeting involving county CEO Michael Thurmond.