A waste disposal company has breached tax regulations, environmental regulations and health and safety regulations. The auditor has been approached by the tax authorities, the government body supervising the award of licenses to such companies and a trade union representative. All of them have asked the auditor to provide them with information about the company. The auditor has also been approached by the police. They are investigating a suspected fraud perpetrated by the CEO of the company and they wish to ask the auditor certain questions about him.

Required:
Describe how the auditor should respond to these types of requests.