I sent all certified true copies with my ITA pack. This was my checklist.
1. Application Form
2. Application Fee: Bank draft
3. Passport: Certified true copy
4. Birth Certificate: Certified true copy
5. Police Certificate: Original
6. Medical Certificate: Original
7. IELTS certificate: Certified true copy
8. Pre-Assessment (PAR): Certified true copy
9. International Qualification Assessment(IQA): Certified true copy
10. Work Experience: 2 Sets of Certified copy(Appointment letter, Experience certificate, Release letter, Salary/Pay slips, Tax certificate)
11. Photographs: 2 copy (Full Name and Date of pick up)
12. National id card(Photocopy)