Abstract: Disclosed herein are systems and methods for detecting foreign material in a good. A system controls an X-ray machine to capture an image of a good. The system analyzes the image captured by the X-ray machine by applying one or more of a foreign material detection algorithm and a foreign material model to the image. The system determines whether the good includes a foreign material comprising a challenge card by detecting at least one marking component on the foreign material when analyzing the image, wherein the challenge card includes the at least one marking component and a challenge material.