I believe that Holmes said in a Supreme Court decision (or a speech)
that to clear up misunderstanding, "Read the law; read the law; read
the law."  I'd like the citation, date, source, etc.

Greetings Jackeroo:

I located only one reference that remotely resembled your query and it
was referenced as an "old adage":

"Read the law. Read the law, and read the purpose."

This appears at http://commdocs.house.gov/committees/bank/hba54727.000/hba54727_0.HTM

I wish I could have found attribution to Holmes but perhaps another
Researcher will be able to assist you.  I wanted to give you this
information so that you would know that Researchers are attempting to
find the information you seek.

Best regards,
journalist-ga

Here's a bit of info for you:

Oliver Wendall Jones - Quotes
http://www.quoteland.com/author.asp?AUTHOR_ID=76

These keywords, exactly as typed, entered ibnto the main Google page
bring up 27 results:

"Oliver Wendell Holmes" and "read the law"

...none of them hit paydirt though...

~~Cynthia