[RETRACTED PAPER -PLAGIARISM THROUGH TRANSLATION-] The Editorial team of the journal respectfully informs to the readers, authors, academics, researchers and the public that consult Opinión Jurídica that the article Thoughts and Observations of Punishment in Contemporary Criminal Law, by the author Dimitirs Liakopoulos, published in volume 19, 38th issue, has been retracted. At the end of 2020, the journal received information about unethical conducts by this author and we were informed about this article being plagiarized by translating a text from the book Punibilità (2017), compiled by Giovannangelo de Francesco, as can be evidenced in the following link: https://pubpeer.com/publications/40BD300324ADA61079955553C23E57 It is worth mentioning that the manuscript, once submitted, was initially reviewed by the anti plagiarism software Turnitin, and its similarity report did not display any relation with the aforementioned text; the article passed all the assessment criteria through the double-blind peer review methodology and only after publishing it were the journal notified about the unethical conducts of the author, whose Orcid was public and recently restricted. Unfortunately, the Turnitin software was not able to detect plagiarism through translation. In the days close to these events, the journal had communications with the author, given that he had another article in submission process, and as soon as the journal consulted him about the recent restriction of his public Orcid, he decided to retire the manuscript and requested not being contacted again. Following the Crossmark Policy, declared in the University of Medellin's journal system website, this article is hereby retracted for plagiarism and unethical research.[RETRACTED PAPER -PLAGIARISM THROUGH TRANSLATION-] The Editorial team of the journal respectfully informs to the readers, authors, academics, researchers and the public that consult Opinión Jurídica that the article Thoughts and Observations of Punishment in Contemporary Criminal Law, by the author Dimitirs Liakopoulos, published in volume 19, 38th issue, has been retracted. At the end of 2020, the journal received information about unethical conducts by this author and we were informed about this article being plagiarized by translating a text from the book Punibilità (2017), compiled by Giovannangelo de Francesco, as can be evidenced in the following link: https://pubpeer.com/publications/40BD300324ADA61079955553C23E57 It is worth mentioning that the manuscript, once submitted, was initially reviewed by the anti plagiarism software Turnitin, and its similarity report did not display any relation with the aforementioned text; the article passed all the assessment criteria through the double-blind peer review methodology and only after publishing it were the journal notified about the unethical conducts of the author, whose Orcid was public and recently restricted. Unfortunately, the Turnitin software was not able to detect plagiarism through translation. In the days close to these events, the journal had communications with the author, given that he had another article in submission process, and as soon as the journal consulted him about the recent restriction of his public Orcid, he decided to retire the manuscript and requested not being contacted again. Following the Crossmark Policy, declared in the University of Medellin's journal system website, this article is hereby retracted for plagiarism and unethical research.[ARTÍCULO RETRACTADO -PLAGIO POR TRADUCCIÓN-] El equipo editorial de la revista se permite informar a los lectores, autores, académicos, investigadores y diferentes públicos que consultan Opinión Jurídica, que el artículo Thoughts and Observations of Punishment in Contemporary Criminal Law, del autor Dimitirs Liakopoulos, publicado en el volumen 19, número 38, ha sido retractado. A finales del año 2020, recibimos información sobre conductas poco éticas de este autor, y se nos indicó que el artículo en mención era un plagio por traducción de un texto correspondiente al libro Punibilità (2017), compilado por Giovannangelo de Francesco, como puede evidenciarse en el siguiente enlace: https://pubpeer.com/publications/40BD300324ADA61079955553C23E57 Cabe aclarar que el manuscrito, una vez postulado, fue revisado inicialmente por el software antiplagio Turnitin, y su reporte de similitud no presentó relación con el texto ya referido; el artículo superó las evaluaciones de rigor mediante el sistema doble-ciego y solo después de publicado fuimos notificados sobre las conductas poco éticas del autor, quien inicialmente tenía su Orcid con acceso al público, pero en esos días lo restringió. Desafortunadamente el software Turnitin no pudo detectar el plagio por traducción. En los días cercanos a estos sucesos, estuvimos en comunicación con el autor, ya que tenía otro artículo en concurso, y en cuanto le consultamos por el cambio en la visibilidad del Orcid, decidió retirar el manuscrito, además de solicitar que no le escribiéramos más. Siguiendo la Política de Crossmark, declarada en el sitio web de las revistas auspiciadas por la Universidad de Medellín, este artículo es retractado por plagio e investigación no ética.