According to the second sentence of the article, the officer tracked multiple people and their locations. He clearly wasn't caught the first time he used the to

According to the second sentence of the article, the officer tracked multiple people and their locations. He clearly wasn't caught the first time he used the tool inappropriately because he was found guilty of using it illegally multiple times. The officer very clearly was not forthcoming with the investigation, judging from him falsifying documents after the investigation started. So he may have other undetected crimes. In fact, the only fair conclusion I think you can draw is that some officer(s) use the tool inappropriately. Because it's not clear if all uses are audited, or this officer was found on a random check. But in my opinion saying "the system worked" is inappropriate given the lack of data.