Section 23 report - Privately financed infrastructure investment: The Non-Profit Distributing (NPD) and hub models: The Committee will take evidence from- Caroline Gardner, Auditor General for Scotland; Mark Taylor, Assistant Director, Audit Services, Graeme Greenhill, Senior Manager, and Martin McLauchlan, Audit Manager, Performance Audit and Best Value, Audit Scotland. 3. Section 23 report - Privately financed infrastructure investment: The Non-Profit Distributing (NPD) and hub models: The Committee will consider the evidence heard at agenda item 2 and take further evidence from— Caroline Gardner, Auditor General for Scotland; Mark Taylor, Assistant Director, Audit Services, Graeme Greenhill, Senior Manager, and Martin McLauchlan, Audit Manager, Performance Audit and Best Value, Audit Scotland.