Putnam's department last year revoked concealed weapons permits from 291 people after discovering an employee had failed to complete all of the required background checks. The error wasn't widely known until it was reported last week.
Putnam on Wednesday maintained there was no "red flags" with the 291 people. They had passed criminal background checks but had been flagged for other reasons.
He said that if any of the 291 people had been arrested after receiving their permits his department would have been notified by law enforcement.
Citing confidentiality laws, the department has refused to disclose the identities of the people whose permits were revoked.
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