Keynote Speakers
Major ‘Moogy’ Sumner AM
Ngarrindjeri/Kaurna Elder, Cultural Performer, Visual Artist (Painting), Cultural Director & Artistic Director of Tal-Kin-Jeri Dance Group.
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Major “Moogy” Sumner is a world-renowned performer and cultural ambassador of Ngarrindjeri arts, crafts, martial arts and traditional culture. In 2014, Mr. Sumner was appointed a Member of the Order of Australia for his decades of service to Indigenous community and cultural education.
He is highly respected for his tireless work sharing Aboriginal culture and knowledge and often heard speaking passionately about environmental issues – a subject close to his heart. Mr Sumner has decades of experience in advocating for better access to rehabilitation programs, and investment in cultural healing spaces and community-based diversion programs to break cycles of trauma and incarceration.
Major Sumner is a standing member of the World Archaeological Congress, The World Council of Elders and since 2011 the South Australian Aboriginal Advisory Council.
Living and working in Adelaide and Raukkan, South Australia, Mr Sumner serves as a board member on the Ngarrindjeri Regional Authority and the Aboriginal Sobriety Group. He holds the position of Elder in Residence at Ngutu College, and was recently elected to the South Australian First Nations Voice to Parliament.
Karyn McCluskey
Chief Executive of Community Justice Scotland,
Chair of the Centre for Justice Innovation,Founding member of Scottish Violence Reduction Unit.
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Karyn McCluskey is Chief Executive of Community Justice Scotland works to create better outcomes for those who have broken the law, their families, and victims of crime. She is passionate about prevention and provides leadership in a highly complex sector that covers multiple professionals and organisations.
Karyn trained as a nurse, and then in psychology. She spent 21 years in Policing and established the Violence Reduction Unit in 2003 with a Public Health approach to preventing violence which has been replicated internationally.
In addition, Karyn is a Non-Executive Director at Scottish Professional Football League, a board member of Simon Community Scotland and PEEK, Chair of River Garden recovery service and Chair of the Centre for Justice Innovation.
Matelina M. Aulava
Youth Facility Administrator for the Office of Youth Services at the Kawailoa, Youth & Family Wellness Center, Hawai‘i Youth Correctional Facility
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Matelina M. Aulava leads operational teams with a deep commitment to culturally grounded approaches in corrections and youth justice. With extensive experience in correctional management, she brings a community centred perspective to system reform, emphasising the importance of cultural identity, family connection, and restorative practices in supporting youth and strengthening communities.
Matelina’s leadership is shaped by Indigenous values and the belief that effective juvenile justice reform requires honouring culture, healing trauma, and collaborating with community voices. She advocates for evidence informed, culturally responsive strategies that uplift young people and create pathways away from the justice system and toward well being, capability, and belonging.
David McGuire
Chief Executive of Diagrama Foundation (UK), Fundación Diagrama (Spain), European Society of Criminology, European Prison Education Association.
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David McGuire is Chief Executive of Diagrama Foundation UK, a not-for-profit organisation dedicated to supporting individuals at risk of social exclusion. He has more than 24 years of experience within the Diagrama network, a globally recognised leader in youth justice and social integration, originally established by Francisco Legaz-Cervantes in Spain over 30 years ago. Diagrama’s expertise in supporting young people is internationally acclaimed, earning advisory status with the United Nations on youth justice issues.
David’s commitment to community and social inclusion began early; at just 18, while studying for his teaching degree at the University of Córdoba, he founded his own company delivering essential health and safety services to local communities. He joined Fundación Diagrama in Spain shortly afterwards, initially serving as a social educator in one of its pioneering secure youth establishments.
In 2006, David was appointed to lead a €2 million after-care programme that successfully supported over 400 young people in the justice system, establishing crucial partnerships with local agencies andorganisations to facilitate community reintegration.
In 2008, David relocated to the UK with his family to establish Diagrama Foundation's UK operations. Selected from over 450 candidates, he became Chief Executive in 2009. Under his leadership, Diagrama UK has grown significantly, now employing approximately 150 staff and delivering vital services including adoption and fostering, training, supported living for 16 to 24-year-olds, and specialised residential care for elderly people and adults with learning disabilities. Additionally, David actively engages Diagrama UK in European initiatives to develop and share best practices in social care.
An influential voice in juvenile justice, David contributes actively to Diagrama International’s innovation and improvement group and is a sought-after speaker at international conferences organised by bodies such as the International Juvenile Justice Observatory (IJJO) and the European Council for Juvenile Justice (ECJJ). He is also an active member of the European Society of Criminology (ESC) and the European Prison Education Association (EPEA), and holds a PhD in Criminology from the University of Bedfordshire, UK.
Vincent Schiraldi
Founder and Executive Director of the Centre on Juvenile and Criminal Justice (San Francisco) and the Justice Policy Institute (Washington), Co-founder of Columbia Justice Lab, ‘Radical Administrator’ of Youth Justice Systems (Maryland and Washington).
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Vinny Schiraldi has been fighting against the mass incarceration of adults and young people for 45 years. He likens his career to a three-legged stool. He started as an advocate and provider of alternatives to incarceration as founder and executive director of the Center on Juvenile and Criminal Justice (San Francisco) and the Justice Policy Institute (Washington, D.C). He then became what one reporter called a “radical administrator” running Wasington, D.C.’s and later Maryland’s youth justice systems (both of which he had criticized as an advocate) and New York City’s probation and corrections departments. He counts four different mayors and one governor as former bosses. Along the way, he has taught at Harvard and Columbia, where he co-founded the Columbia Justice Lab. The through-line to Vinny’s career has been developing humane and innovative policies consistent with public safety. What fuels his work? The hope that we can treat people entangled in the legal system the way we would want our loved ones treated in the same circumstances.