John A. Mack is recognized as one of the leading workplace investigators in Minnesota. He has conducted workplace investigations exclusively since 2001 for a variety of organizations (union and non-union), including:

  • Fortune 500 companies
  • Minnesota companies listed in The Business Journal's top 30 public and private companies
  • Government agencies
  • Religious institutions
  • Universities/Colleges
  • Elementary schools
  • Health care providers
  • Nonprofit organizations
  • Small businesses

John has interviewed and investigated such diverse employees as law enforcement officers, business executives, professors, teachers, principals, doctors, human resource professionals, lawyers, judges, business managers/supervisors, and clerical and support staff, among others.

John, a licensed attorney since 1992, is admitted to practice law in the state and federal courts of Minnesota and Illinois. He is a Qualified Neutral under Rule 114 of the Minnesota General Rules of Practice. He was twice named a "Rising Star of Law" in Minnesota Law & Politics.

John is an author and frequent lecturer on the ethics of workplace investigations and investigations generally. He recently discussed the ethics of investigations with the following associations of attorneys and human resource professionals:

  • Minnesota Chapter of the Association of Corporate Counsel
  • Hennepin County Bar Association Labor and Employment Section
  • West Central Minnesota Society for Human Resource Management
  • Minnesota's North Star Society for Human Resource Management
  • Minnesota's South Central Society for Human Resource Management
  • Minnesota's Lake Country Human Resource Association