In the Trinidad, Texas case, police obtained a search warrant for a resident's social-media records after she posted publicly about contaminated city water, and she was later arrested for making a false report. A grand jury declined to indict, and the issuing judge then wrote to the department stating that the affidavit had omitted material facts the officers knew at the time, including citizen water-quality complaints and the broader public context of the resident's statements.
The judge's letter drew the lesson every affiant should study: a magistrate is entitled to a fair and complete presentation of the material facts, and material omissions can be as misleading to the probable cause determination as affirmative misrepresentations. The court ordered that future warrant applications from the identified officers be presented in person, under oath, rather than electronically, a documented credibility consequence that follows the affiant into the next application.
The affidavit was sufficient to obtain the warrant on its face. Once the broader factual record became visible, the omissions became the case. That is precisely how a material-omission challenge builds a Franks motion: the affiant stops defending probable cause and starts defending credibility. Read the full teaching case: When Material Omissions Sink a Warrant.