The concept of reasonable expectation of privacy is often more complicated than it appears. There are reams of cases involving the constitutionality of police observations from the air, for example.
But if a group of Maine plaintiffs are to be believed, an operation under that state’s Marijuana Eradication Program crossed the line. It is alleged that in an action involving a gaggle of state law enforcement agencies, including National Guard helicopters, the choppers flew so low that they scared children, caused limbs to break off trees, stirred up dust, terrorized pets and, in one case, killed a steer. That would probably qualify as an intrusion.