Labour's Ayesha Verrall says tobacco's unique harm is why industry links to Government need tighter checks.
She's put forward a Members' Bill designed to ban any linked people working on tobacco policy.
Labour hopes it'll have cross-party support.
Verrall says other products, like vaping, don't need such strong restrictions - but tobacco's incredibly deadly.
"It kills half the people that use it - we don't have other products like that. So that's why we need this specific focus on tobacco."
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