The Boston Police Department will be conducting Minimum Age Purchase Law Compliance Checks throughout 2009.The undercover checks are conducted to ensure that businesses selling alcohol and/or tobacco are following the laws regarding the age for purchase of such products, and that businesses are following the proper protocol of checking identification to prevent the sale of alcohol or tobacco to minors. Adherence to these laws is vital to the prevention of underage drinking, and underage purchase of tobacco products. The checks are an important part of enforcing compliance