Massachusetts v. Sheppard

Seeking a weekend warrant to search Sheppard's (defendant) home in a murder investigation, an officer went to a judge's residence; the judge, unable to find the correct form, used a controlled-substance warrant form, crossed out 'controlled substance,' and issued it. Officers relying on the warrant found evidence linking Sheppard to the murder. The warrant was later held invalid, and Sheppard sought suppression.

Whether an officer may rely on the good-faith exception when a search warrant is later found invalid due to a judge's clerical error.