While speaking at a conference this year, I asked members of the Human Resources community to raise their hands if they routinely instructed employees not to discuss internal investigations.  No surprise, most of the hands (maybe all of them) went up.

For many good reasons, most employers instruct employees to keep the fact of and contents of investigations confidential.  For example, when investigations become public, employees often become less willing to come forward and discuss the nature of the investigation.  Also, in most instances the nature of the investigation involves sensitive information, like a harassment complaint.  Yet, the National Labor Relations Board (NLRB) has indicated that reasons such as these are not legally sufficient to tell employees to keep their mouths shut.

National_Labor_Relations_Board_logo_-_colorEarlier this year, on March 18, 2015, NLRB General Counsel Richard F. Griffin, Jr. issued a report covering recent cases on employee handbook rules that encroached on employees’ Section 7 rights under the National Labor Relations Act.  Griffin’s report (GC Memo 15-04) stated that the vast majority of handbook violations are due to employers’ failure to comply with the first prong of the Lutheran Heritage test.  The report also provides timely guidance to employers in light of a recent NLRB decision against a fast-food restaurant’s finding Section 7 violations in its employee handbook.

When you are conducting a workplace investigation, do you instruct employees interviewed not to discuss the investigation with other employees?  You probably do.  It protects the fairness, integrity and truth-gathering function of the investigation.  It allows you to do the best possible investigation.

Did you know, however, that giving that instruction to employees — to not discuss the investigation with co-workers — may be illegal?  The National Labor Relations Board (NLRB) recently said it is.  Read on for their explanation and what you can do about it.