There are some good cases to read if you want some further information, this will provide you with an insight as to what is looked for at a hearing and how cases are decided.
If you read any of these you will see the following key points about staying outside of IR35:-
1. Contractual Terms are required
2. The day to day working arrangements must be consistent with the contractual terms
3. The arrangements between the client and the agency must be consistent with your contract with the agency
It is important to remember that each case is a unique set of circumstances, and decided on its merits, using the methodology above.
First Word Software November 2007
Dragonfly Consultancy 2008
Ansell Computer Services July 2004
Island Consultants Ltd July 2007
Usetech Ltd March 2004
Alternative Book Company May 2008
MKM Computing Ltd September 2007