A bid by MEPs to trigger action against Hungary for alleged breaches of the rule of law are misguided and counter-productive.
Conservative MEPs will vote against the move tomorrow, arguing it interferes in the sovereignty of a member state and goes far beyond the remit of the European Parliament.
Home Affairs spokesman Dan Dalton said: "This report crosses a boundary by politicising what should be a purely legal matter.
"If the EU's treaties have been breached by any Member State, it is for the European Commission to build a legal case against it. MEPs have no role to play in the process and their involvement leaves any subsequent legal action open to the accusation that it is politically motivated.
"This report is misguided, counter-productive and sets a dangerous precedent. I hope parliament votes against. "