Question

*above suspicion
[for one] to be honest enough that no one would suspect one; in a position where one could not be suspected. (This is a translation of words attributed to Julius Caesar, who divorced his wife, Pompeia, on the grounds of her possible involvement in a public scandal; Caesar stated, "Caesar's wife must be above suspicion.") (*Typically: be ~; keep oneself ~; remain ~.)
  The general is a fine old man, completely above suspicion.