26 January News Expert Terms and Conditions of Engagement 01. Starting your Expert Witness Business, 03. Setting Fees and Getting Paid, 02. Working with Agencies or Panels, Terms and Conditions of Engagement We have just completed the regular review of our Standard Expert Terms and Conditions of Engagement. The purpose of the Terms and Conditions is to help you ensure that you have appropriate contractual arrangements in place with the parties that instruct you.