What's on?

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

MA Youth Program
NTV Conference 2022
NT Family Violence training
DOVE Project

What’s Ken thinking?

Last post: 4 August 2022

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

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Our MI Masterclass is now taking enrolments!


Motivational Interviewing & working with Family Violence


Join leading expert Ken McMaster for this in-depth, three-part online masterclass where you will learn how to use Motivational Interviewing to drive better engagement and outcomes for participants in behaviour change programs.


20th – 22nd of September
11:00 AM – 5:00 PM AEST (GMT +10)


Masterclass breakdown & information sheet available here

Looking for invoicing options or NZ billing info? Contact us!

Get a 5% discount when booking 2 or more attendees in the same transaction!


Disrupting domestic and family violence podcast series


We are excited to introduce our latest project Talking with Ken – a disrupting domestic and family violence podcast – Available now on Spotify and SoundCloud.

In this insightful series, Ken McMaster (MSW Hons) talks to those in New Zealand and Australia who have contributed significantly to the thinking, policy and practice of disrupting domestic and family violence over the last 40 years.

Episode #3 is now available!

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

Joel Porter

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

Helen Mentha

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

Daryl Gregory

B.A. (Maori Studies), ANZASW

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

Rob Paramo

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

Jo Dennen

B.A., B.L.A.

Matt Williams

BTcLn, NCALNE. Memberships MINT

Meet our clients

HMA Clients
HMA Clients