# Doctrine of Constructive Notice
## Origin
Laid down in Ernest v. Nicholls (1857).
## The Rule
Every person dealing with a company is presumed (deemed) to have knowledge of the contents of the company's public documents registered with the ROC, especially:
- The Memorandum of Association (MOA), and
- The Articles of Association (AOA).
Whether or not the person has actually read these documents, they are considered aware of their contents.
## Why does this rule exist?
Public documents like MOA and AOA are accessible to anyone at the ROC's office. Because of this public availability, the law treats them as 'notice to the world'. It protects the company by ensuring that outsiders cannot plead ignorance of limitations on the company's powers.
## Practical Effect
| Situation | Effect |
|---|---|
| A creditor lends money exceeding the borrowing limit in the MOA | Creditor is deemed to have known of the limit; cannot enforce the excess |
| Outsider relies on a director's representation contradicting AOA | Outsider cannot succeed — deemed to have read the AOA |
## Relationship with Doctrine of Indoor Management
The Doctrine of Constructive Notice is a shield for the company. Its companion doctrine — the Doctrine of Indoor Management (Turquand's rule) — is a shield for outsiders against the harshness of constructive notice. Together they balance interests:
- Constructive notice: Outsiders must know what is in public documents.
- Indoor management: Outsiders are NOT required to know about internal procedural compliance.