Final answer:
The provided text does not relate to the historical event of Anne Frank's betrayal and subsequent discovery by the Nazis. Without further context from relevant historical texts or 'The Diary of Anne Frank', the suspect Mr. Frank believed to have tipped off the police cannot be determined accurately from the provided text.
Step-by-step explanation:
The question pertains to who Mr. Frank suspected of tipping off the police about the Secret Annex where Anne Frank and others were in hiding during World War II. While there are several theories and suspects regarding the betrayal of the Frank family, the answer you seem to be looking for is not immediately clear without additional context such as that from 'The Diary of Anne Frank' or historical investigations. Notably, the text provided does not relate to the historical events surrounding the Frank family but appears to be an excerpt from a work of fiction by Edgar Allan Poe, detailing a cunning theft by a Minister named D, utilizing keen observation and manipulation of circumstances. This creates confusion as it doesn't correspond to the historical event being queried.