A Congressional investigation, with the help of some high level whistle blowers, revealed:
The interim report states in part:
The interim report, drawn from transcribed interviews with the commanders of all seven D.C. patrol districts, as well as one former commander currently placed on suspended leave, reveals that Metropolitan Police Department (MPD) Chief Pamela A. Smith pressured and at times directed commanders to manipulate crime data in order to maintain the appearance of low crime in the nation’s capital. The testimony from the commanders also describes an environment under Chief Smith marked by fear, intimidation, threats, and retaliation—conditions that contributed directly to declining morale and the loss of experienced officers and commanders.
In other words, Chief Smith pushed her subordinates to lie about how bad things in the District really were. No wonder she's resigning.
Increasingly the "conspiracy theories" are being proven right and vindicating claims made by President Trump.