THE Wilson Group has appointed John McMellan as Wilson Security CEO Australia and New Zealand. Prior to the appointment, Mr McMellan was managing director of Chubb Security Personnel. Mr McMellan has also held a senior risk management position at an Australian-based retailer with annual revenues exceeding $4 billion and employing more than 15,000 people. Mr McMellan brings a wide range of experience to Wilson Security, having previously worked in local government, designing and implementing crime management strategies. He is also a recipient of the Victoria Police Medal.