Practice area · 10

Expert Witness Services

Technical expert reports for complex proceedings

Expert witness services (peritajes) are decisive evidence in complex criminal proceedings. At Guevara Castaño Abogados we coordinate certified experts across multiple disciplines to provide technical analyses that strengthen our clients' defense or support our cases representing victims in criminal proceedings.

Specialized Expert Reports

We coordinate certified experts in mechanical engineering, automotive engineering and traffic accident reconstruction, accounting and financial analysis, forensic computing, forensic medicine, forensic psychology, ballistics, document examination, and handwriting verification. Our internal expert, Engineer Luis Alfonso Guevara López, has over 2,000 cases as a court-appointed expert in automotive matters before the Superintendence of Industry and Commerce.

Our expert reports comply with the requirements of articles 405-423 of the Code of Criminal Procedure (Law 906 of 2004), ensuring their admissibility at oral trial and supporting the expert through cross-examination preparation.

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What our clients ask

Expert witness services (peritajes) are technical or scientific analyses performed by qualified specialists to assist the court in matters requiring expertise beyond legal knowledge. In the Colombian Accusatory Criminal Justice System, expert reports are key evidence under articles 405-423 of the Code of Criminal Procedure. We coordinate certified experts in mechanical engineering, accounting, forensic computing, medicine, psychology, ballistics, and document examination.

We coordinate technical expert reports in: automotive engineering and traffic accident reconstruction, mechanical and industrial engineering, accounting and financial analysis, forensic computing and digital evidence, forensic medicine, forensic psychology, ballistics, document examination, handwriting verification, and chemistry. Our internal expert, Luis Alfonso Guevara López, is a mechanical engineer with over 2,000 cases as court-appointed expert.

Under Law 906 of 2004, expert reports must be disclosed during the discovery stage and the expert must testify at oral trial to support, explain, and defend the conclusions of the report. Without this oral testimony, the expert report has no probative value. Our team prepares experts both technically and procedurally for cross-examination.

Yes. The defense has the constitutional right to contest expert reports introduced by the prosecution. This can be done through (i) cross-examination of the Fiscalía's expert at oral trial, (ii) presentation of a counter-expert report by a defense expert, and (iii) motions for exclusion based on methodological defects, lack of expert qualifications, or chain-of-custody breaches.

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