B oisdale restaurant, a short walk from Victoria station in Belgravia, has been a popular hotspot for the centre-right political crowd in Westminster for at least two decades when it became the focal point of opposing Tony Blair ’s indoor smoking ban. But in recent months, Tory MPs who would have frequented the venue have been avoiding it, because being seen there was a sure sign that they were planning to defect to Reform UK . The restaurant has become an unofficial centre of operations for Nigel Farage and his party, where interviews and negotiations over defections took place accompanied by oysters, venison, and claret. Farage with Jenrick, but Tory defections have stopped (Getty) But from Friday Conservative MPs and peers may feel that it is safe to return, with the passing of the 7 May deadline set by Mr Farage for defectors to be accepted in Reform.…