A scathing assessment of the Ashley Youth Detention Centre has criticised security at the facility and the use of force against detainees and isolation methods by officers.
The report contained several redacted passages in relation to security issues at the facility though were still able to be read through the heavy black inking.
Custodial Inspector Richard Connock in his assessment of the centre said there was little real security and no metal or screening device on-site to prevent entry of prohibited items.
Another redacted passage stated the facility's perimeter fence could easily be accessed by detainees and a person who approached the fence at night would only be detected within metres of it if staff were located in the right place at the right time.
Mr Connock said security cameras at the facility were rarely monitored and only reviewed when an incident occurred.
In unredacted parts of the report, Mr Connock criticised the record-keeping system for use of force against detainees and said a majority of reports did not contain sufficient detail to indicate if procedure was followed.
He said when multiple reports of the same incident were made, there appeared to be a "copy and paste" method used.
Mr Connock said a person kept in isolation for more than seven hours needed to be examined by a medical practitioner but no medical practitioner was based at the facility.
Greens justice spokeswoman Rosalie Woodruff said the report presented a convincing case for Ashley to be closed down.
"(This is) truly a national scandal," she said.
"We've got no idea about how young people are being cared for in this detention facility."
Labor's Shane Broad said the detention facility still had a role to play in the state but other measures needed to be explored so young people did not end up there.
Human Services Minister Roger Jaensch said the report indicated the government should continue its work on better training practices for those employed at Ashley.
He said most of the concerns highlighted in the report were being acted upon.
Another report by Mr Connock on the state's adult prison facilities was released on Thursday which showed concerns over ageing infrastructure in the minimum and medium security sections of Risdon Prison and at the Launceston Reception Prison.
Mr Connock said the inspection highlighted concerns with the prison service's disciplinary processes and the absence of specific staff training for those working in high-security units at the prison.
Community and Public Sector Union secretary Tom Lynch said the report showed the prison service was overcrowded and under-resourced.
He said lacking correctional officers meant inmates were placed in lock-down for long periods of time which denied them access to rehabilitation programs and family visits.
Mr Lynch said lacking officer numbers meant critical paperwork could not be completed.