With the intensive integration of deep learning and computer vision, a series of advanced technologies such as facial recognition, image (video) generation, and image classification, have made rapid progress. However, deep learning models are considered “black box models” due to their difficulty in explaining internal processes and predicting results, which poses a serious challenge to the interpretability of image evidence in the field of forensic science. Based on this, this review outlines an overview of interpretability issues based on deep learning. Emphasis was placed on the theoretical and methodological research on the interpretability of facial features based on deep learning both domestically and internationally, such as saliency maps method, perturbation-based method, and score/statistics-based method. Their applications in facial recognition and other related fields, especially in the field of forensic science portraits, were summarized. This review proposes the problems of facial feature interpretability methods based on deep learning models, and looks forward to the future development direction of facial feature interpretability based on deep learning.

International forensic science organizations (associations) include the International Forensic Strategic Alliance (IFSA), the International Association of Forensic Science (IAFS), and others. Since its establishment in 2004, the International Forensic Strategic Alliance has expanded into a multilateral partnership alliance of six operating regional forensic science networks and three strategic partners, as its collaborative capabilities and international influence growing. This paper introduces the basic information of the International Forensic Strategic Alliance and its members. Using the Asian Forensic Sciences Network (AFSN) and the Senior Managers Australian and New Zealand Forensic Laboratories (SMANZFL) as examples, it analyzes the connections and distinctions between alliance members, including the topics of interest at the past five annual conferences, as well as similarities and differences in the focus areas of forensic science networks in different regions. This paper also reviews China’s relationship with the International Forensic Strategic Alliance, focusing on the development trends of forensic science domestically and internationally, and looks ahead to the prospect of China’s participation in international forensic science organizations (associations), with the aim of providing insights for promoting the internationalization of forensic scien ce in China.