Plans to legalise assisted dying are apt to necessitate a ballot of politicians successful the Welsh Parliament earlier they go law, 2 elder Labour backbenchers person told BBC Wales.
On Tuesday Labour MP Kim Leadbeater published proposals to marque it ineligible for over-18s who are terminally sick to beryllium fixed assistance to extremity their ain life.
Former Welsh authorities ineligible advisor Mick Antoniw and ex-minister Julie Morgan said they expect determination would request to beryllium a ballot connected whether the Senedd gives its consent for the legislation.
The Senedd rejected the broader rule of assisted dying backmost successful October, aft a statement tabled by Morgan.
Antoniw, who besides supports the legislation, said helium expected a "totally antithetic debate", should the substance return.
The ballot would not beryllium legally binding but would beryllium politically hard for Labour MPs to ignore.
The Welsh authorities declined to springiness a presumption connected whether a ballot was needed connected Tuesday, but said it was successful "regular contact" with the UK authorities to recognize the bill's implications.
The Senedd successful Cardiff Bay, which is besides known arsenic the Welsh Parliament, has powerfulness implicit however Wales' wellness attraction work is run, but not the transgression law.
Leadbeater's measure covers England and Wales - and includes provisions for doctors, the Welsh authorities and Wales' main aesculapian officer.
It would necessitate 2 autarkic doctors - and a justice - to verify whether the idiosyncratic satisfies the criteria to instrumentality their ain life.
Leadbeater says it volition guarantee the strictest safeguards anyplace successful the world.
Opponents person raised concerns that radical could consciousness pressured into ending their ain lives.
What could happen?
The UK Parliament is not banned from making laws that the Senedd usually has powers over, but the Senedd is usually asked to springiness its statement if that happens.
It does this successful a process called a legislative consent question (LCM) - fundamentally a ballot connected whether Members of the Senedd (MSs) hold that the UK Parliament tin spell ahead.
After past month's vote, it leaves unfastened the anticipation that the Senedd could cull the Leadbeater measure adjacent if it is passed successful the Commons.
It is not presently wide what would hap to the instrumentality if that happened, and whether it would request to beryllium rewritten.
That is due to the fact that the LCM strategy is not really legally binding and has been ignored by UK governments successful the past.
Westminster Labour, however, has implied it would adhere to the governmental convention, having promised to fortify LCMs astatine the past wide election.
An archetypal statement and ballot volition instrumentality spot successful the Commons 29 November but the BBC was told a ballot successful the Senedd would travel later.
The Welsh authorities said the LCM process would not beryllium "engaged" until aft the archetypal signifier of amending the measure successful the Commons.
'More confidence'
Julie Morgan's question calling for a caller instrumentality to let assisted dying was defeated successful October by 26 against to 19 for - with 9 abstentions.
It was not binding connected the Welsh authorities and ministers were among those who voted against, including First Minister Eluned Morgan and Health Secretary Jeremy Miles.
Miles indicated successful the statement that a further ballot would apt beryllium needed, and said the instrumentality would person "long reaching implications" for the wellness service.
The Cardiff North Labour MS said she expected determination to beryllium an LCM, and said the Westminster instrumentality is antithetic to the question debated successful the Senedd which was overmuch wider and included "incurable illness, causing unbearable suffering" which is not included successful Leadbeater's projected law.
"Obviously erstwhile the question was rejected, it was connected a somewhat antithetic motion.
"There was a batch of interest astir a slippery slope. Kim Leadbeater's measure addresses that successful being precise specific. That mightiness springiness much assurance to immoderate people."
She said it was not wide what would hap if an LCM was rejected, and however the ballot successful the Commons volition go.
"I deliberation its indispensable there's a escaped vote," she said of the imaginable Senedd vote. "I'm definite that volition hap again."
Former Welsh authorities counsel wide Mick Antoniw told BBC Wales: "It surely seems apt that arsenic this volition interaction connected the mode that devolved services mightiness beryllium delivered successful the future, it is simply a substance that volition travel backmost to the Senedd."
The Pontypridd Labour Member of the Senedd (MS) argued that the measure provides a "very restrictive mentation of the circumstances assisted dying could instrumentality place".
He said it was a "totally antithetic debate" to October's motion, and argued Senedd members would person the accidental to power Leadbeater's bill.
"This 1 would beryllium [on whether], if authorities is going through, however would it interaction connected devolved functions."
The erstwhile counsel wide said helium would beryllium amazed if Labour didn't springiness backbenchers a escaped vote.
One Senedd hostile of assisted dying legislation, Conservative Darren Millar, said: "The world is that nary substance however good intentioned and nary substance what safeguards radical whitethorn effort to enactment successful place, changing the instrumentality successful this country volition effect successful immoderate radical feeling pressure, whether existent oregon perceived, to prematurely extremity their lives.
"Instead of facilitating premature deaths, governments crossed the UK should absorption connected addressing inconsistent entree to effectual palliative attraction that makes a existent quality to the prime of beingness for radical dealing towards the extremity of their lives."
A Welsh authorities spokesperson said: “We are successful regular interaction with the UK authorities regarding the backstage members assisted dying measure to recognize and program for immoderate implications for Wales.”