Hi Vig13
Statements don't need to end at 16. 16 is just the end of statutory education.
If she is in school (not FE College) post-16 then the Statement should continue. So if her current school has a sixth form and she wishes to continue in education, the Statement should remain in place and she should be able to stay at her present school.
However, the LA will be arguing that at post-16, she has completed her statutory education and therefore the LA has no responsbility towards her.
It's a very difficult situation for you to be in. The LA will want her to leave the independant school and transfer to a local FE College = basically to save the LA money. Before doing so the SEN COP states that the Ed Pysch should assure themselves that any alternative education is suitable. What you therefore need to do is to look at all the options that are available in local FE Colleges and prove they cannot meet her needs and therefore are not options for her - so she would need to remain at her current independant school post-16.
If the current school has post-16 provision, I would write to the LA stating that you wish her to remain there post-16 and also include a letter from your DD herself stating that she wishes to remain at her present school (they are supposed to take account of the young person's views) and ask them to confirm that is what will happen. Also ask for a copy of her TRANSITION PLAN which will show the post-16 placement.
If your LA is utterly opposed to her staying at the curent school post-16 you'll need to ascertain what the LA's alternative proposals are. That will be difficult. They are more likely to string you along without giving any alternative eduaction and then cease the statement immediately she becomes 16. At that point you'll need to go to Tribunal to object to the cessation of the Statement.
Statements are supposed to be amended by 15 Feb in the year of transition. I would force them to make the amendment - that means they would either have to name the current school as post-16 provision or leave the Part 4 blank, which would indicate that they intend to cease the Statement post-16. At that point you can appeal to SENDIST against the LA's failure to provide a suitable educational placemnet for post-16.
As I said, it's a very grey area. IPSEA should be able to give advice. I was in the same position myself but at that time post-16 education was available via L&SC funding, which has now been transferred back to the LA in most areas.
So look at possible local provision so you can start to make a case as to why that's not suitable and tackle the matter early so that you have sufficient time to have a SENDIST hearing to get some provision in place for the autumn in which she ecomes 16 and needs a post-16 placement.