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Check out what we are up to over the next few months...

HMA Masterclasses
Corrections Victoria MI Development
NSW Youth Justice Training

What’s Ken thinking?

Last post: 5 May 2022

Ken McMaster blogs about the many issues faced by the human services sector in our modern age.

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For Australian facilitators working with men in behaviour change/ family violence programs


Our leading expert, Ken McMaster, is offering two unique upskilling opportunities that you may be interested in.

From the 4th – 6th May, he will be hosting a Motivational Interviewing and Working with Family Violence masterclass, looking to equip those who attend with essential MI skills that drive better engagement and outcomes for participants in Men’s Behaviour Change programs.

Secondly, starting on the 16th of May, Ken will take a deep dive into the skills of running interventions with men who use violence in their relationships. He will be running a 4-day Disrupting Family Violence Onboarding masterclass (25 hours over two weeks), where the focus will include: uncovering the role of trauma in DFV, engaging with and disrupting thinking that support DFV, and exploring key intervention areas that support long term behaviour change.

Assessing increased risk of family violence in a Covid 19 Environment

We have been acutely aware of the additional risk of family violence that’s emerging as people face the challenges of living in a Covid 19 environment. We have developed the resource below to assist workers to assess their caseloads and develop direction to conversations that will enhance family safety and wellbeing through this period of time. Click on the link below to download your copy.

Framework and Principles for Assessment of Men’s Acute Violence

Welcome to HMA

Providing professional human service work for over 38 years.

HMA is a team of professional human service teachers and practitioners offering blended learning solutions to organisations in the social service sector. We work as trainers, programme developers, supervisors and writers in the area of human service work.

Much of our work occurs in the areas of consultation in criminal justice work, social work with men, family violence prevention training programmes, child protection, the interviewing of children experiencing trauma, abuse issues, and psychological assessment and therapy.

We work across New Zealand, Australia, Singapore and Hong Kong.

Recent additions to the Shop

Motivational Interviewing DVD

A starting point in understanding the underlying theory and practice of Motivational Interviewing. Includes interviews with accomplished trainers, researchers and skilled practitioners.

Motivational Interviewing in Groups

A unique clinical resource, this book shows how to infuse the methods and spirit of motivational interviewing (MI) into group-based interventions.

Motivational Interviewing 3rd edition Helping People Change

An authoritative, guide that professionals and students turn to for a complete introduction to motivational interviewing.

A little about us

Formed in the mid 1990s HMA (Hall McMaster & Associates Limited) developed around the work of Ken McMaster. Ken McMaster has a long history of work in the stopping violence, sex offenders, alcohol and drug, and criminal justice areas.

Our mission statement is ‘Working with Passion and Integrity to bring out the best in people’; a statement that is at the core of our philosophy to life.

Meet the team

Ken McMaster


Suzanne Hall

Registered Psychologist, M.A. (Psychology), B.A., MNZPsS

Daryl Gregory

B.A. (Maori Studies), ANZASW

Helen Mentha

B.A. (Hons), M.Psych (Clinical), Grad. Cert. Business Administration, Grad. Cert. Professional Writing, M.A.P.S.

Nev Trainor

PGDip.Psych.(Clin.), M.Soc.Sc (1st Class Honours), B.Soc.Sc, Registered Clinical Psychologist

Rob Paramo

MSc (Criminological Psychology), BSc (Hons), Chartered Psychologist (UK Forensic), (AFBPsS), Registered Psychologist, MNZPS, MICJFP

Mike Cagney

BSW, M.Coun (Distinction). Memberships MANZASW, Approved Family Court Counsellor and Provider DV Programmes

Sam Farmer

Registered Psychologist (NZPsB); Memberships: NZPsS; CPSIG(NZ); BPS; ISCP

Joel Porter

BS, MA, PsyD Registered Clinical Psychologist (Australia), Board Certifited Clinical Supervisor (Australia), Registered Clinical Psychologist (NZ –inactive) Memberships: MINT, INEBRIA

Gillian Hardie

P.G.Dip. (Child and Family Psychology), M.Ed., B.A

Jo Dennen

B.A., B.L.A.

Matt Williams

BTcLn, NCALNE. Memberships MINT

Meet our clients

HMA Clients
HMA Clients