Policeman’s Logic

To solve the crime, collate the facts
And formulate a theory,
But if the suspect’s acts
Don’t quite match up, no need to query,

Not if the theory’s very strong,
And the facts nearly fit.
A detail here and there is wrong?
Then alter them a bit,

And bingo! you’ll have solved the crime,
All clever stuff, you know.
Remember, every time:
The theory stays, the details go.

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