cover of episode Drawing Out a Suspect |11

Drawing Out a Suspect |11

2021/3/9
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Crime Beat

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Nancy Hixt
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Ren Lafreniere
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Nancy Hixt: 本节目探讨了警匪素描在侦破案件中的作用,从历史上著名的案件,例如开膛手杰克和金州杀手案,到现代案例,警匪素描都发挥了重要作用。早期素描技术较为粗糙,但随着技术发展,素描的准确性和细节程度显著提高。警匪素描能够有效帮助警方识别罪犯,但如果素描过于模糊,也可能导致大量无效线索,浪费警力资源。 Ren Lafreniere: 作为一名经验丰富的警匪素描艺术家,Ren Lafreniere分享了他35年的从警经验,以及在警匪素描方面的专业知识。他指出,早期警匪素描技术落后,识别率低,几乎没有帮助警方破案。他通过自身的绘画天赋和后期的FBI专业培训,成功地绘制出许多帮助警方破案的警匪素描。他强调,警匪素描不仅需要绘画技巧,更需要对细节的观察和记忆能力,以及对人脸结构和比例的科学理解。他分享了在多个案件中运用警匪素描的经验,包括Beltline Rapist案和Falcon Ridge Rapist案,并详细描述了绘制过程以及与受害者和目击者沟通的技巧。 受害者: 受害者分享了他们与警匪素描艺术家合作的经历,他们对素描的准确性和艺术家提问方式表示肯定,并强调了警匪素描在帮助他们回忆案发细节和识别罪犯方面的积极作用。 Nancy Hixt: 警匪素描技术的发展,以及在实际案件中的应用,警匪素描在破案中的作用,以及警匪素描的局限性。

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Forensic composite sketches have evolved from crude, unrealistic depictions to highly detailed, scientifically accurate representations used by police worldwide when there's no surveillance video, relying solely on witness or victim accounts.

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It’s a police tactic that uses both science and art.

From Jack the Ripper to outlaws of the wild west-- or even more recently in the case of the Golden state killer-- for hundreds of years, investigators have used sketches to try and identify offenders. 

Many early drawings were fairly crude and often they were more like artist renditions of what evil looked like versus accurate depictions of what witnesses saw. 

Over years experts have fine-tuned their techniques and even now police agencies all over the world use sketches when they don’t know who committed the crime -- when there’s no surveillance video, only witness or victim accounts.

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