This work analyzes international developments for the containment of bias and the causes and consequences of ignored bias in IT forensics used in investigative and expert witness activities. AI offers new and interesting options for this, although not all types of bias are relevant when using AI. It should also be noted that several biases can occur one after the other, which increases the inaccuracy of the investigation results even more. LLMs as special AI systems can certainly offer various areas of application in expert witness work or investigative work, although it should be noted that LLMs have a strong tendency to hallucinations. Finally, international developments on the use of AI in courts should be surveyed and what problems can be expected specifically when using LLMs.