BROOKLYN - The state is cracking down on businesses who sell alcohol to minors. 

In an undercover investigation, the New York State Liquor Authority found 32 grocery and liquor stores citywide, including 15 in Brooklyn, didn't check identification when selling booze. 

The manager of a busted 7-Eleven in Park Slope says the company policy is to always check the ID of anyone who looks under 30 years old, while a Key Foods manager in the same neighborhood said the claims against his store are not true. 

The sting took place between April 17 and May 1.