Wilmer Cutler Pickering Hale and Dorr has been appointed by Best Buy’s directors to launch an investigation into allegations of personal misconduct by the company’s former CEO Brian Dunn, reports The Am Law Daily.

Best Buy, the largest consumer electronic retailer in the US, announced Dunn’s resignation last week, with allegations subsequently emerging that Dunn (pictured), who is married, was having a relationship wth a 29-year-old woman who worked at the company.