The Editorial Board of the European Journal of Interdisciplinary Issues maintains a zero-tolerance policy towards plagiarism in all its forms and regards academic integrity as a fundamental condition for publication.

Plagiarism is understood as the use of another person's ideas, findings, text, data, tables, or illustrations without proper reference to the source and acknowledgement of authorship. Violations also include: verbatim copying of passages without quotation marks and citations; paraphrasing another's text without attribution; appropriating the results of others' research; self-plagiarism and excessive textual self-citation (re-publishing one's own previously released material without appropriate reference); and the "salami-slicing" of data from a single study across several publications.

Prior to peer review, every manuscript is checked for originality using the StrikePlagiarism.com system. The editors assess not only the formal similarity score but also the nature of the overlaps: technical matches (established terms, institutional names, references) are not considered violations, whereas the concealed borrowing of substantive content is grounds for rejection.

Authors are required to submit exclusively original material and to cite all sources correctly, both in the text and in the reference list. Where generative artificial intelligence tools have been used, authors must disclose this in the text; such tools may not be listed as authors or co-authors, and the authors bear full responsibility for the content.

If plagiarism is detected at the submission stage, the manuscript is rejected without further consideration. If a violation is discovered after publication, the editors act in accordance with the guidelines of the Committee on Publication Ethics (COPE): depending on the severity of the case, a correction (corrigendum) is published or the article is retracted, marked "RETRACTED" with notification to readers. The author's institution may be informed of the violation.