Nana Akua has slammed Labour's proposed "one in, one out" youth mobility scheme with the EU, saying "they can't even stop the dinghies crossing the channel".
Her comments come as reports suggest Home Secretary Yvette Cooper is warming to the proposal.
The youth mobility scheme would allow young people under 30 from both the UK and EU to live and work in each other's territories.
Speaking about the one-in, one-out plan, GB News Political Editor Christopher Hope said: "It looks like an idea that Yvette Cooper is quite keen on. She's very much against anything that might increase the net migration figures.
Nana Akua said that "they can't even stop the dinghies"
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"I can see you're shaking your head there, Nana, but the idea of one in, one out means there's a revolving door. So, as we take in a young person from the European Union, we can send a Brit over there."
Akua said: "I can't even see how they're going to manage this. How do you create a structure that enables one in, one out?
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"How are they going to do that? They can't even manage people coming here in a dinghy across the Channel. They’re processing people really slowly.
"How are they going to, where's the manpower to process them one in, one out?"
Christopher said: "I don't know yet. I think you're asking the question.
"I'm not in Government, but I don't know yet. I think they are nervous about the net migration figure that will come down.
"We're told by the Prime Minister not to a figure which is anywhere and below, probably what happened in the past ten years, but it won't be as high as nearly a million who came in in the last year."
Despite enthusiasm from some quarters, the Government has been careful to emphasise that any youth mobility scheme would not constitute a return to freedom of movement.
Environment Secretary Steve Reed told Times Radio: "Negotiations are underway. We were very clear in our manifesto that there won't be any return to the single market, the customs union or freedom of movement and that remains our position."
Christopher Hope said that the Home Secretary "seems keen" on the idea
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The official readout of Sir Keir Starmer's meeting with European Commission President Ursula von der Leyen made no mention of youth mobility.
According to reports in The Times, Cooper is supportive of the plan as long as it is "capped" to ensure there could be no return to pre-Brexit freedom of movement.
Government sources revealed the Home Secretary, previously seen as the biggest opponent of the scheme, now backs the proposal with certain limitations.
