How to verify an AI answer about Philippine law before you rely on it

A law student pastes an AI answer into a case digest at midnight. It cites a Supreme Court decision with a G.R. number, a date, and a quotable holding that fits the assignment perfectly. Everything about it looks like the real thing, because the model has read thousands of real ones and knows exactly what they look like.

Whether that citation is real is not answerable from the answer. Courts abroad have sanctioned lawyers who learned this the expensive way, and the Code of Professional Responsibility and Accountability puts the same duty of candor on every Philippine lawyer who signs a pleading. The good news: checking takes six minutes, and the ritual below makes it routine.

Existence first. Search the G.R. number or statute number in the Supreme Court E-Library or the Official Gazette. A citation that returns nothing is not a rare find; it is a fabrication, and you just caught it before it entered your work.

Then jurisdiction. Models trained mostly on US law love to import it: a "landmark labor case" that turns out to be American, a doctrine phrased in US constitutional language, a statute section numbered like the US Code. Confirm the authority is Philippine and from the right level: Constitution, statute, Supreme Court decision, or an administrative issuance, because what binds and what merely persuades depends on which one you are holding.

Currency next. Philippine law moves: the Labor Code has been renumbered, tax law was reshaped by TRAIN and CREATE, and rules of procedure were amended. An AI trained on older text can cite a provision that was real and is now repealed or renumbered. Check the law as it stands, not as the model remembers it.

Then the check that catches the subtlest failures: open the actual text and compare it to the claim. A real case cited for something it never held is still a false citation, and it survives the existence check. Read the dispositive part and the actual holding, not the syllabus alone. This is the same claim-versus-passage habit from our 90-second check, applied to law, where the stakes are highest.

A decision can exist, be Philippine, be quoted accurately, and still be dead law. Check whether later decisions have reversed, modified, or abandoned it. Search the case name in the E-Library and scan what cited it since; a doctrine the Supreme Court abandoned two years ago is a trap that only later treatment reveals.

Finally, factual fit. The AI matched your question to a pattern; you must match the authority to your actual facts. A rule about regular employees may not reach a project employee; a doctrine about written contracts may not cover your verbal one. This last check is pure lawyer judgment, and no tool does it for you, which is exactly as it should be.

The free primary sources cover everything: the Supreme Court E-Library for jurisprudence and its later treatment, the Official Gazette for statutes and issuances. The cost is navigation: knowing where to look and scanning long documents for the passage that matters.

That navigation cost is what Tatsulok's curated Philippine law collections remove. Ask a question and the answer is assembled only from the actual Constitution, codes, statutes, and Supreme Court decisions in the collection, with every claim linked to the exact provision, so checks one through four happen in the click that opens the source. When the collection does not contain an answer, it says so instead of inventing a G.R. number.

This week's drill, no signup needed: take one legal claim an AI has given you, or ask any chatbot a Philippine law question now, and run all six checks against the E-Library. Time it. Then decide which of those minutes you were previously skipping.