THE Scotland Bill does not deliver the Smith Agreement in full, according to research by the House of Commons library.

The independent research backs up the findings of the cross-party Scottish Parliament Devolution (Further Powers) Committee which pointed out the shortcomings of the Bill last month.

In a clause-by-clause analysis of the Scotland Bill, the Commons’ librarians claim that proposals on welfare and the principle of “no detriment” agreed by Smith are missing.

Stewart Hosie, deputy leader of the SNP , said: “It is now increasingly clear that the Scotland Bill does not deliver the Smith Agreement in full. The analysis of the Bill by the House of Commons Library should act as a wake-up call to the UK Government. The Conservative Party signed up to the Smith Commission deal and they must not now renege on their commitments.

“The Scottish Government has already highlighted shortcomings in the Bill, as has the cross-party Scottish Parliament Devolution Committee. But the UK Government, once again, is not listening.

“This a big test for the UK Government. But as things stand, it looks like they are going to fail the people of Scotland once again.”

A Scotland Office spokesman said: “The Scotland Bill delivers the Smith Agreement in full. It is inaccurate to claim otherwise.”

The Commons debates the Scotland Bill next week.

Yesterday, ahead of their appearances at the Devolution (Further Powers) Committee, both Secretary of State for Scotland David Mundell and Deputy First Minister John Swinney wrote to the committee chair.

Mundell said that “opportunities” remained to “refine the bill”.

As reported in yesterday’s National, Swinney, on behalf of the Scottish Government, sent the new clauses ministers would like to see in the Scotland Bill.

The two men face the Committee tomorrow morning.

Today sees the first in a series of events organised by the Government to engage “civic Scotland to come together to discuss the devolution of social security”.

Speaking at the event, Julia Unwin, Chief Executive of the Joseph Rowntree Foundation is expected to say: “The next phase of devolution presents an opportunity to introduce greater powers and incentives to invest in poverty-reducing approaches, with the savings from improved outcomes retained by the Scottish Government, and the costs of additional spending met from within the Scottish budget.”