Thank you for the prompt response.
The business operates globally (with offices in Manchester, London, New York, Dusseldorf, Amsterdam, Copenhagen).
My clients are based all over the UK and in Europe.
The new company is also global or at least works with global companies, with a significant number operating in Europe.....So I can see that the geographic area could be considered reasonable.
As you say - 6 months is a long time - and I only have a 4 week notice period.
There is nothing that I remember seeing that references Garden leave (or paid leave) to offer any sort of alternative to unemployment.
Where do I go from here....should I ask them to identify the clauses that they are invoking and/or to explain or justify their concerns?
Or should I simply say that the restrictions are an unreasonable restraint of trade and that I shall be leaving on the 28th anyway (and expect solicitors letters etc) post departure.
Do I have any onus or responsibility to advise my new employer - now or before I start?
Please advise how to best deal with this conflict.