They also like to do that with whistleblowers:

"Mollath's forensic incarceration for seven years and the surrounding legal judgments became the basis of a public controversy in Bavaria and the whole of Germany when at least some underlying elements of his supposedly fabricated paranoid story about money-laundering activities at a major bank turned out to be true after all. Mollath himself had consistently claimed there was a conspiracy to have him locked up in a psychiatric care ward because of his incriminating knowledge; evidence that turned up in 2012 made his claims appear plausible."

-- https://en.wikipedia.org/wiki/Gustl_Mollath