Am I missing something?

I have a shared residency order (by consent)for our 3 children (8, 7 and 3) pending a full Psychiatric assessment of my ex wife. She was sectioned under mental health act in 2008 and has had 3 relapses, all requiring hospitalisation. Most recent was in Jan. 2012 - kids were about 3 hours away from returning to her care when I got call from Psychiatric hospital. All relapses have been due to her not taking her medications.

Question is this, as judge has ordered a full psychiatric assessment which she is paying for in order to determine suitability of shared residency and risk levels to children -

1. should I have any input in deciding who the Psychiatrist should be?
2. a forwarded instruction letter from her lawyer arrived by email on the same day as her assessment. It did not say ANYTHING AT ALL about her relapses but rather that I was the cause of her recent relapse hence her not taking meds. Can I contact the Psychiatrist to provide this medical history even though the assessment has already been done but the report is not yet done?

I am a Litigant in Person.

Thank you

bump

Did the court directions say that an independent expert witness should be jointly instructed or was it a case of the treating psychiatrist carrying out an assessment?

The place to raise factual inaccuracies is the court room.