But she hasn't done anything criminal, according to newly opened investigative files obtained from the Utah Attorney General's Office through an open-records request.

The A.G. probe into Miller's private life came late last year when Miller - weary of neighbors' allegations about teen drinking, drug use and unlicensed child-care operations within her home - urged the state's lead law enforcement agency to investigate.

Until this week, the office had released only a two-sentence statement summing up its findings that the Republican D.A.'s behavior at home had “no basis for criminal charges.”

The A.G. file confirms that. Investigator Kerry Gallegos reports that the case had too little evidence to warrant a criminal investigation when presented to screeners in early December.

But the documents detail an often rocky relationship between the first-term district attorney and her neighbors that teetered toward litigation.

“We have received several complaints,” letters from the Ivory Crossing Homeowners' Association begin, “ . . . that your dog has been allowed to wander through the neighborhood . . . that your yard is not being kept in a neat and orderly manner . . . that when guests come to your home, they park in a manner as to block the driveway of your neighbors.”

The Millers responded less than two weeks later with a hotly worded letter denying the accusations and threatening to “immediately take the legal action necessary to defend our rights” if the homeowners' association pursued them. The claims amount to harassment by a neighbor with a “personal vendetta,” the couple's letter states.

Investigators found no evidence of teen drinking or drug use. (In fact, a confidential source who once worked for Miller and referred to her old boss as a “b----” told officials that Miller did not allow minors to drink alcohol.) As for the unlicensed child-care charge, the Republican-led A.G.'s Office notes that a Utah Bureau of Child Care Licensing staffer twice visited the home unannounced and determined that a license wasn't needed.

The A.G.'s files hint at an admitted faux pas by Miller: running a law office out of her home for years without a business license. But the D.A. had since moved the practice and obtained the proper permits.

“The evidence turned up lacking to pursue anything further,” A.G. spokesman Paul Murphy said.

jstettler@sltrib.com