Correspondence

[Xinfu]

http://www.gutenberg.org/files/2346/2346-h/2346-h.htm

...We must bear in mind that Oberstein has gone to the Continent to dispose of his booty, but not with any idea of flight; for he had no reason to fear a warrant, and the idea of an amateur domiciliary visit would certainly never occur to him. Yet that is precisely what we are about to make."
"Could we not get a warrant and legalize it?"
"Hardly on the evidence."
"What can we hope to do?"
"We cannot tell what correspondence may be there."
"I don't like it, Holmes."
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My interpretations:

1. We might expect to find something that corresponds to the evidence we have now; if we got some, we would advance on the case.

2. Now we cannot tell other people what letters have been passed between this agent and West, the dead junior clerk, so we have to rifle his house.

Do you agree?

[Tomisimo]

Sounds like it's talking about letters and/or other written communication that they were hoping to find by going through his house.

[Xinfu]

Thank you~