Plaid Cymru leader Leanne Wood says last night's 'Wales This Week' investigation into the Robbie Powell report showed "unusual and questionable" redactions.
She repeated a commitment to introducing a new 'Robbie's Law' to allow families to access medical records, and outlaw their deletion.
Ms Wood said that if the the law could not be introduced in this parliament, it will be in Plaid Cymru's programme for government in 2016.
Plaid Cymru's leader commits her party to introducing a new law banning medical record deletions and allowing families access to records
Parts of a report into the death of 10-year-old Robbie Powell, withheld by the First Minister, have been revealed by Wales This Week.