Current AI comes with a significant risk: AI hallucinations
Artificial intelligence is rapidly becoming part of everyday professional life. Lawyers, tax advisors, consultants, and business owners increasingly rely on AI tools to draft documents, summarize case law, and analyse complex regulations. While these systems can dramatically improve efficiency, they come with a significant risk: AI hallucinations.
Understanding what AI hallucinations are—and the dangers they pose—is essential for anyone using AI in high-stakes fields such as law or taxation.
What is AI Hallucination?
An AI hallucination occurs when an artificial intelligence system generates information that appears accurate and authoritative but is actually false, fabricated, or misleading. Large language models do not ‘know’ facts in the human sense. Instead, they predict text based on patterns learned from vast datasets. When the system lacks reliable information, it may generate a plausible-sounding answer rather than admitting uncertainty.
Common examples include:
- Invented court decisions or legal precedents
- Fabricated academic sources or statistics
- Incorrect summaries of laws or regulations
- Misattributed quotes or legal reasoning
In everyday conversation, an incorrect AI response may be inconvenient. In legal or tax contexts, however, the consequences can be severe.
- Professional Liability: Lawyers and tax advisors remain fully responsible for the accuracy of their work. If a document contains fabricated case law or incorrect statutory references, the professional—not the AI—bears responsibility.
- Financial Consequences: Incorrect tax interpretations or regulatory guidance may lead to penalties, audits, or financial loss.
- Ethical Violations: Submitting fabricated legal authorities to a court may constitute a breach of professional ethics.
- Reputational Damage: Clients and courts expect accuracy. Even a single incident can undermine credibility and trust.
Artificial intelligence should be viewed as a powerful assistant—not an autonomous expert. When the system lacks reliable information, it may generate a plausible-sounding answer rather than admitting uncertainty.
In everyday conversation, an incorrect AI response may be inconvenient. In legal or tax contexts, however, the consequences can be severe.
A Recent Example
A recent case in the Czech Republic highlighted this risk. A lawyer submitted a court filing that referenced judicial precedents generated by AI. However, some of the cited decisions did not exist. The court identified the fabricated citations and sanctioned the lawyer, emphasising that professionals are responsible for verifying all sources—even when using AI tools. This case illustrates a crucial point: AI can assist with drafting and research, but it cannot replace professional judgment and verification.
AI can still be a powerful and valuable assistant when used correctly.
Always verify cited cases, statutes, and references in official databases.
- Treat AI output as a draft, not a final product.
- Cross-check legal or tax interpretations with primary sources.
- Maintain clear documentation of independent verification.
- Stay informed about ethical guidance regarding AI use in your profession.
Human oversight is not optional—it is essential.
Summary
Artificial intelligence should be viewed as a powerful assistant—not an autonomous expert. The responsibility for accuracy, integrity, and professional judgment always remains with the human professional.
