Bonafide Certifiacte ?

Hi ,
I wish you all a great year ahead.
I have a querry related to Bonafide Certificate for New Zealand Visa.
My wife was studying for an advanced course in design and now she has reecieved a job offer from a
reputed company in Auckland , NZ.
We are planning to appy for a work visa for her and later a dependent work visa for me.
My question is how should she provide a bonafide certificate ,
what should we declare ,
she was in europe for 1 year for the course but now she is back in india as her course is over.
how and what all should this bonafide certificate should include.
Aslo we are planning to apply by ourself ( not taking services of any advisor ) ,
is this ok ( considering the success rate ) or we must use a certified advisor to file our case.

Thanks
Ashish

Don't use an expensive adviser. 

She should get a course certificate from wherever she did her training.
This will then be scrutinised by the immigration authorities as to the authenticity of the certificate and whether the training institute is  okay by their standards. 

Any certificates are treated the same way. This is because some people use bogus certificates when applying for a visa.

Visas are issued on a points system so the more qualifications you have, the more points and a better chance you have of getting a visa