Mass. Gen. Laws ch. 218 § 32A
An application for a criminal complaint submitted to the district court by a police department against a person arrested for a felony offense shall be accompanied by an offense-based tracking number. An otherwise valid application for a complaint submitted by a police department against a person arrested shall not preclude the issuance of a complaint merely because the application does not include an arrestee's offense-based tracking number. If a complaint is issued based on an application for a complaint submitted by a police department against a person arrested for a felony that did not include the arrestee's offense-based tracking number, the prosecutor shall submit the offense-based tracking number of the defendant to the court to be included in the case file.
Mass. Gen. Laws ch. 218, § 32A