At present, GenAI detection tools are unreliable and should not be used. Unlike plagiarism detection software, tools claiming to detect GenAI-generated content produce too many false positives and false negatives to be trustworthy in academic decision-making. Using them risks unfairly penalising students whose genuine work might trigger flawed algorithms.
However, other indicators may alert you to suspect misconduct, such as changes in a student's writing style, sudden changes in levels of performance, unusual language structures, or inconsistencies between formative and summative work might raise questions for you about authorship. These observations, while not definitive proof, can form the basis for further investigation.
LSE has published updated guidance for staff on how to conduct investigations into AI-related academic misconduct. It sets out a six-stage framework covering the appointment and training of investigators, the initial review of flagged work, an expanded review of the student's other submissions, the conduct of student interviews, evidence evaluation, and the formal allegation and penalty process. The document identifies various forms of evidence that may indicate AI use, including confabulated references, stylistic inconsistencies, and hallmarks of AI-generated text. It also cautions against over-reliance on AI detection tools, which current evidence suggests are unreliable. The guidance emphasises that protecting students from false accusations is paramount, while also clarifying that a student confession is not required where evidence strongly indicates misconduct.
The preventive approach remains most effective. Rather than trying to detect GenAI use after submission, design assessments that verify learning directly through observed methods, progressive checkpoints, or formats that are more resilient to GenAI misuse or that make unauthorised GenAI use more obvious (see FAQ above on observed assessment and FAQ above on re-designing assessment) and engage in discussion with your students about the effective and appropriate use of GenAI.
Resource: Staff Guidance for dealing with allegations of assessment misconduct.