This Introduction highlights the dynamic nature of expert witnessing by highlighting some of the major areas of change and challenge: Our understanding of the immigrant and the asylum seeker reflected in changing legal categorizations, changing conditions in sending and receiving countries, and the changing and expanding field of anthropology that provides new critiques, materials, and perspectives for anthropologists as expert witnesses. Expert witnessing is a challenging and rewarding area of application, which may also contribute to anthropological theory and influence the legal framework in which asylum claims are adjudicated.

中文翻译：

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引言：专家见证的变化和挑战

本简介通过强调一些主要的变化和挑战领域来强调专家证人的动态性质：我们对移民和寻求庇护者的理解反映在不断变化的法律分类、输出国和接收国不断变化的条件以及不断变化和扩大的领域为人类学家作为专家证人提供新的批评、材料和观点。专家证人是一个具有挑战性和回报的应用领域，它也可能有助于人类学理论并影响裁决庇护申请的法律框架。