Deepfake defense is a criminal defense method that emerged based on the development of deepfake technology and generative artificial intelligence.The emergence of deep forgery defense may dispel the basis of trust in evidence in criminal proceed-ings.At the same time,it may lead to a"liar's bonus"situation in criminal proceedings,and may even affect the determination of the facts of the case.Facing the impact of"deep forgery defense"on criminal proceedings in the era of artificial intelligence,the criminal prosecution defense system must be reformed in a timely manner.In terms of procedural law,it is necessary to shift from the examination of the authenticity of evidence to the limitations of procedural rules;in terms of substantive law,penalties related to"deep forgery defense"should be added;in terms of lawyer practice disciplines,administrative regulatory penalties should be con-cretize.
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