I got to thinking that what many countries lack is evidence for the benefits and outcomes of home education. Scientific proof. Expert opinion. The US has a lot of this and other countries try to ride on the back of the positive findings which I am not saying is wrong but will the law-makers take heed?
Still, that being all, use it we must.
An initial search online has led me to the following references, reports, studies and papers:
Home School Legal Defense Association (HSLDA)
2004 UK study of notschooled 4 and 5 year olds by PJ Rothermel
A specific edition of 'Evaluation and Research in Education' on Home Education
About.com
www.geocities.com/nelstomlinson
I hope this helps those currently before the courts in Germany and at the EU level.