I do not think that the noble Lords has followed the process of the Constitutional Reform and Governance Act 2010, which specifically gives both Houses of Parliament a role in the ratification of treaties. That completely updates where Dicey got to.
European Union (Notification of Withdrawal) Bill
Proceeding contribution from
Lord Tyler
(Liberal Democrat)
in the House of Lords on Wednesday, 1 March 2017.
It occurred during Committee of the Whole House (HL)
and
Debate on bills on European Union (Notification of Withdrawal) Bill.
Type
Proceeding contribution
Reference
779 c906 
Session
2016-17
Chamber / Committee
House of Lords chamber
Subjects
Librarians' tools
Timestamp
2017-03-05 21:45:53 +0000
URI
http://hansard.intranet.data.parliament.uk/Lords/2017-03-01/17030198000071
In Indexing
http://indexing.parliament.uk/Content/Edit/1?uri=http://hansard.intranet.data.parliament.uk/Lords/2017-03-01/17030198000071
In Solr
https://search.parliament.uk/claw/solr/?id=http://hansard.intranet.data.parliament.uk/Lords/2017-03-01/17030198000071