In 2023, Abbott confirmed the Department of Justice had opened a criminal investigation into conduct at the plant. A spokesperson for the department's Western District of Michigan did not respond to a request for information about the investigation's status. Abbott did not respond to a question about the probe but said at the time that it was "cooperating fully." The Securities and Exchange Commission and Federal Trade Commission were also scrutinizing the company after the problems surfaced in Sturgis. Spokespeople for the SEC and FTC, which released a report on the formula supply disruptions, declined to comment. Abbott did not respond to questions about the investigations.