https://www.sirweb.org/about-us/CodeOfEthics.shtml
SIR Code of Ethics
10. An Interventional Radiologist who chooses to provide expert testimony in legal cases shall be as objective as possible and not accept a contingency fee for his/her services or other compensation that is linked to the outcome of the case. An expert should be appropriately qualified and thoroughly prepared with relevant facts so that he or she can, to the best of his or her ability, provide the court with opinions that are accurate and capable of substantiation with respect to the matters at hand. The expert also should be engaged in the active practice of interventional radiology and should be able to demonstrate a thorough knowledge of current practice. Expert testimony should promote the truth, not the cause of either party. It should reflect the community standard and generally not represent the expert’s personal views as the only acceptable ones.