Which of the following is NOT a classification for completed investigations in internal affairs?

The classification for completed investigations in internal affairs serves to categorize the outcomes based on the findings of the investigation. "Sustained" indicates that the evidence supports the allegation against an officer, leading to potential disciplinary action. "Unfounded" means that the investigation determined the allegations were baseless. "Not sustained" signifies that there wasn't enough evidence to either support or refute the claim. Lastly, "Exonerated" indicates that the investigation found the officer’s actions were lawful and justified.

In this context, the answer that is NOT a classification for completed investigations is "Sustained," because it reflects an outcome rather than a categorization method commonly used in internal affairs investigations. The typical classifications are often more indicative of the findings and how they relate to the nature of the claims made.