Where can I find a complete English translation of the 6th century
Irish
brehon law tract entitled 'The Judgements of Dian Cecht'? It deals
with medical matters as they relate to old Irish law (brehons were
lawyer's and Dian Cecht was a god of healing). Please try to refer to
books that are in print (or that were published post 1920) and current
web sites.

The “Judgements of Dein Checht” or "Bretha Dein Checht", was
translated by DA Binchy and published in Eriu, Volume 20 (1966): 1-66.

Binchy was a member of the Irish Bar and Senior Professor at the
Dublin
Institute for Advanced Studies. 

Eriu was founded in 1904 as the journal of the School of Irish
Learning, Dublin. In 1926 the School was incorporated in the Royal
Irish Academy, which undertook to continue publication of the journal
under the same title and in the same format.

"Back numbers of all parts and volumes of Eriu are normally available;
enquiries should be addressed to the Publications Officer of the
Academy" (payment is by Mastercard or Visa):

Royal Irish Academy
19 Dawson Street
Dublin 2
Ireland
Tel: +353-1-6762570; Fax: +353-1-6762346
email of Publications Office: publicationsria.ie

Alternatively, you might be able to get this issue of the journal on
inter-library loan through your library.

Binchy has also translated some other documents on Celtic law:
D.A. Binchy ed. and trans., Corpus Juris Hibernici. 6 vols. Dublin,
1978.
"", "Bretha Crolige", Eriu 12 (1952): 1-77.

and "Crith Gablach", Dublin, 1941 
This last includes an early legal poem available to read at: 
http://ua_tuathal.tripod.com/lawintro.htm  
(Web site of Brehon Aid, a campaign by The Brehon Law Project, a loose
coalition of individuals and organizations who are interested in the
study of Brehon Law, the indigenous common law of Ireland.)

Sources: http://www.florilegium.org/files/COMMERCE/p-lawyers-msg.text
(A collection of material from mailing lists and newsgroups relating
to the law).
http://www.ria.ie/publications/journals/Eriu/Eriu.html (Eriu home
page)
http://www.ria.ie/academy/contacts.html (Royal Irish Academy contacts
page)

Search strategy: 1. Judgements Checht  2. “Bretha Dein Checht”  3.
Eriu journal Celtic 4. “DA Binchy”

Many thanks for your good work and extra information.