Study plan; no national error rate yet. This is a plan for research. It is not a finished study.
Choose the sample first
Start with federal law and BC, Alberta, Ontario and Quebec. Write down how laws are chosen before looking for striking errors. Cover more places before claiming a result for all of Canada.
Keep different types of laws in separate groups. Count how many of each were checked.
Check the law in force
Save the official source, its date and a file fingerprint. The fingerprint is a code that shows if the file changes. Keep drafts apart from laws that passed. Track later changes.
Check section links, definitions and schedules. Where there are two official languages, compare both texts.
A computer flags a lead, not a verdict
A person must check each possible error against the law and its history. A second reviewer must check before publication. Keep typos, unclear words and real conflicts apart.
A typo alone does not prove a law is void or caused harm. A law we have not checked is not proof of a law without errors.
Track the fix
Record the rule affected, extra work and any blocked decision. Track when the error was reported, answered and fixed. Show what was reviewed and what is still missing.