1) The doctrine of constructive notice states that any person dealing with a company is assumed to be aware of the contents of the company's memorandum and articles of association, even if they have not actually read them.
2) The doctrine of indoor management protects outsiders dealing with a company in good faith from internal irregularities, as long as the dealings are consistent with the documents available to the public.
3) There are exceptions to the doctrine of indoor management, such as when the outsider had knowledge of irregularities, did not read the company's articles, acted negligently, or where forgery or illegality was involved.