Some potential sources:
"Meet Koulla". NICCY web page. Retrieved 1 January 2020. Mentions inter alia: She is "of Greek-Cypriotic origin"; term-start March 2015; has been board member of the Patient and Client Council, "a member of the NI Children and Young People’s Strategic Partnership, and the Safeguarding Board for Northern Ireland". "She trained as a social worker and previously worked in probation, NI Women’s Aid and prior to her appointment was the Director of Include Youth for almost 17 years." (copyrighted text, I suppose; I found no note on the page, but default might include copyright?)
"Plans Coming Nicely to the Boil". NICCY web page (Koulla's blog). 16 March 2015. Retrieved 1 January 2020. She states that Monday 2 March, 2015, was her "first day as Commissioner for Children and Young People". However, she also wrote "So far I have completed 10 days...", which indicates that she only counts working days.
"New children's commissioner Koulla Yiasouma appointed". BBC News. 4 December 2014. Retrieved 1 January 2020. Mentions inter alia: Term-start 2015; she was then (since 1998) the director of Include Youth.
"Koulla Yiasouma named new rights chief for children". Belfast Telegraph. 5 December 2014. Retrieved 1 January 2020. Mentions inter alia: Term-start when her predecessor's term ends in January (2015), which seems to be a month too early.
"Children's Commissioner Koulla Yiasouma raises concerns about Silent Justice". The Irish News. 23 August 2017. Retrieved 1 January 2020.
"Children in NI face plenty of problems (part one)". scopeNI. 29 June 2018. Retrieved 1 January 2020. About a report by Koulla, emphasising poverty and other social problems for NI children.
Include Youth edit
"..." denotes direct quotes, which (for copyright reasons) should not be employed directly, or explicitly quoted (providing source).
According to [www.includeyouth.org the home page of Include youth], this is a "regional" ( = Northern Ireland??) organisation, "established in May 1979 as the Northern Ireland Intermediate Treatment Association (NIITA)".
[1.pdf A 'manifesto'] (2008): "Include Youth is a not for profit organisation that actively promotes the rights, best interests of and best practice with young people in need or at risk." It confirms that the organisation was founded in May 1979 as the Northern Ireland Intermediate Treatment Association, and states that it changed name to Include Youth in 1998 - incidently (or rather: Not so incidently), the year K. Y. says she became the director of the organisation. The most important points seem to be that they advocate early intervention and support to problematic youngsters, in lieu of later taking them into custody (I suppose the latter could include various degree of forced ernvironmental changes, up to and including inprisonment?). There are other points, as that the organisation "promotes the safety of all people in communities" (which might be especially important in regions with a history of civil war like conditions?). They however also stress general correlations between social factors and sicial delinquency, as in the following direct quote from the manifesto (their boldface and emphasis):
- "Unsurprisingly, international research consistently demonstrates that children and young people are more likely to be involved in offending and/or anti-social behaviour if they leave school early, have special needs, live in poverty, have truanted or been excluded from school, have spent time in residential care or have experienced neglect or abuse within their families."