A man who went into court ready to acknowledge he was walking across the Northeastern campus with a loaded gun had his conviction dismissed because campus police didn't have enough of a reason to "seize" him in the first place and because the judge in the case failed to ask him at the start of his trial if he were really sure he wanted to admit possession of the gun.

Jesse Harris was walking across campus on Sept. 23, 2015 with two other people, one a Northeastern student, and two bicycles, when they were approached by three Northeastern police officers looking for people who'd been spotted apparently casing the bicycle rack outside Snell Library, from which several bicycles had recently been stolen, according to the Massachusetts Appeals Court ruling in the case.

The three denied stealing the bikes and said they had just come from the Popeyes in the campus food court - one showed a takeout box. When asked if they'd been in trouble before, Harris lifted a pants leg to show an ankle GPS device - worn as a condition for bail on an unspecified earlier charge. The officers asked for their IDs and used their radios to check on two of them. Harris, who did not have ID, provided his birth date and address:

As Officer Sprague was calling in the defendant's information, Officer Sweeney observed the defendant make a movement to his left side, causing his sweatshirt to ride up and expose a knife clipped inside of his waistband. Officer Sweeney, "concerned for his and other officers' safety[,] grabbed the knife handle to remove it." Officer Cooney then told the defendant to place his hands on his head because he intended to conduct a patfrisk. The defendant began to comply, but then fled, chased by Officer Good. While fleeing, the defendant dropped the firearm that is the subject of the motion to suppress.

So, cut and dry? No, the Massachusetts Appeals Court ruled.

In order to detain somebody, even if for questioning, police have to have probable cause that the people have either committed a crime or are about to. The court ruled that the three became detained or "seized" at the point at which the police asked for and got their ID cards. Before that, they were free to end their conversation with police and leave. After that, they could reasonably assume they could not leave without further trouble, the court ruled.

The problem for the police officers in the case is that up until that point, they had no evidence the three were up to anything bad: They voluntarily talked to police, they showed evidence to back up their alibi - the Popeyes container - and they were nowhere near the bike rack. So there was no probable cause justifying police "seizing" them by asking for their IDs, the court ruled. And because the actions that led to Harris's arrest - the exposure of his knife, his flight, the recovery of the gun - all happened after what was an improper stop, the gun should not have been used against him at trial, the court ruled.

In this case, the police exercised coercive power to effect the stop and seizure before they observed or knew anything of the knife in the defendant's waistband. At the time they effected the stop they lacked reasonable suspicion of an existing or intended crime. The defendant and his companions accordingly should have been left to move on. The subsequent seizure of the knife, the defendant's flight, and the recovery of the gun are all fruits of the unlawful stop and should have been suppressed.

But the court continued that even if there were no problems with the evidence, they would have to toss Harris's conviction because of what happened - or rather, what did not happen - at the beginning of his trial before a judge.

Before the trial, Harris had signed a document stipulating to certain facts, among them that the gun was in his possession at the time of his arrest, that it was loaded and that he did not have a license for the gun. But the judge never asked Harris a required series of questions to ensure the document was accurate and that he had willingly signed it.