The Supreme Court of the United States has upheld a finding by the National Labor Relations Board that an employer's denial of an employee's request for the presence of a union representative at an investigatory interview which the employee reasonably believes might result in disciplinary action is an unfair labor practice.
NLRB v. J. Weingarten, Inc., 420 U.S. 251 (1975).
Thomas A. Berret,
Labor Relations - Unfair Labor Practices - Employee's Right to Mutual Aid or Protection - Employee's Right to Presence of Union Representative at an Investigatory Interview,
Duq. L. Rev.
Available at: https://dsc.duq.edu/dlr/vol14/iss2/6