The Whistle Blower Act, Mass. General Laws Ch. 149 § 185(b), provides that a public employer may not retaliate against a public employee who has (1) "blown the whistle" or, in other words, disclosed an activity, policy or practice of the employer that the employee believes is a violation of a law, rule, or regulation and a risk to public health, safety or the environment; (2) provided information to a public body conducting an investigation into such activity; or (3) objected to or refused to participate in such activity. Retaliation under the Act includes any adverse employment action, such as demoting, suspending or firing the employee who makes the disclosure or objects to the activity.