By March of 2016, almost all court cells had been checked for risks, and the authority said it was working with the Justice Ministry "to ensure that urgent action is being taken".
Last year, however, in the monitoring report, the authority was expressing frustration - "concerned at the prolonged period of time over which the remediation programme was to be implemented and expressed this concern to the Ministry at regular meetings".
The Justice Ministry's manager in charge Fraser Gibbs said he did not hear these concerns, though they were in the official report.
"They may have done but they didn't do to me directly," he said.
It has taken till this year and cost $25m to make 386 court cells and 107 court interview rooms, at more than 50 courthouses, safer by modifying seats, grills, light fittings, doors, ceiling and wall and floor linings, installing privacy screens and replacing cell toilets.
A $20m contract to do the bulk of the work was not signed until the 2018/2019 financial year according to the Ministry's annual review.
There is no record of any contract for cell safety work exceeding $1m being signed in the previous four financial years.
The ministry had already begun cell upgrades before the 2015 suicide, though that event spurred it on, Gibbs said. However, it was a big job checking every cell and staggering upgrades so courts could keep functioning.
"We had to rejig other property projects in order to ensure we could fund this and do it as quickly as we could.
"Then we had to work on design of the cells and agree on componentry to reduce ligature points."
Cells that had not been upgraded were still used through this time.
"We had a protocol in place with police for additional supervision over that period. If need be they had additional staff.
"Any person deemed to be at risk was monitored."
However, these risks were identified in a 2017-18 report by groups that monitor detention facilities, including the IPCA and Ombudsman: "Ligature points remain; there is sometimes inadequate monitoring; exchange of information between Police and Corrections (for example about risk of self-harm) is poor or non-existent."
The Office of the Ombudsman in a statement said it welcomed the removal of ligature points in court cells, "as an important way to help prevent self-harm".
WHERE TO GET HELP:
If you are worried about your or someone else's mental health, the best place to get help is your GP or local mental health provider. However, if you or someone else is in danger or endangering others, call police immediately on 111.
OR IF YOU NEED TO TALK TO SOMEONE ELSE:
• 0800 543 354 (0800 LIFELINE) or free text 4357 (HELP) (available 24/7)
• https://www.lifeline.org.nz/services/suicide-crisis-helpline
• YOUTHLINE: 0800 376 633
• NEED TO TALK? Free call or text 1737 (available 24/7)
• KIDSLINE: 0800 543 754 (available 24/7)
• WHATSUP: 0800 942 8787 (1pm to 11pm)
• DEPRESSION HELPLINE: 0800 111 757 or TEXT 4202
