Denise Koster, B.A.A., P.H.Ec., CTM.
LL.M Candidate Osgoode Hall Law School
Denise Koster has worked in the area of violence and harassment since 1985. In response to the tragic murder of an elderly client Denise founded Koster Consulting & Associates in 1994. Over the past 35+ years her work evolved from elder abuse advocacy and training, to the identification, assessment, investigation and management of workplace violence, discrimination, harassment, sexual harassment bullying and resident abuse.
Denise investigates person to person and cyber harassment (a form of harassment using electronic forms of contact) cases focusing on both internal and external perpetrators including anonymous correspondence. As a Certified Threat Manager, and graduate of the world-renowned Gavin Debeckers’ Threat Assessment and Management Academy, Denise provides workplaces with customized threat assessment and management plans.
Denise is a contributor to Lawyer Daily, Talent Canada and was recently featured in the Ottawa and Toronto Sun article: “Home Workplaces: A Battle Zone for Bullying”. In addition, Denise was a guest on the on-line Ontario Employment Law Show Fire Away with Stuart Rudner, Australia’s Managing Violence Podcast with Joe Saunders and the Who I Became Podcast with Greater Minneapolis Risk & Compliance Leader Simon Osamoh and Alberta's Andrea Adam HR TalkShop .
Denise is the author of the book:
"Refusing to Accept the Unacceptable:
The Trials, Tribulations and Triumphs of Workplace Bullying and Harassment"
Education
LL.M Candidate Osgoode Hall Law School
York University
2021-2023
Licensed Private Investigator
Ministry of the Solicitor General
License #11310565
Osgoode Hall Law School Professional Development
Certificate in Human Resources Law
Osgoode Hall Law School Professional Development
Certificate in Elder Law
Osgoode Hall Law School Professional Development
Advanced Certificate in Workplace Investigations
Association of Threat Assessment Professionals (ATAP)
Certified Threat Assessment Manager (CTM)
McAfee Institute
Workplace Violence & Threat Assessment Specialist
Gavin de Becker & Associates
Advanced Threat Assessment & Management Academy, Lake Arrowhead, California
OANHSS Administrator Certification Certification Upgrade
Ontario Association of Non-Profit Homes and Senior Service
OANHSS Administrator Certification
(Attended) Ontario Association of Non-Profit Homes and Senior Service
Crisis Prevention Institution
Nonviolent Crisis Intervention® Training
Recertification Instructor Certification Program
Canadian Institute of Cultural Affairs
Group Facilitation
Institute of Peace and Conflict Studies
Conrad Gerbal University College
Alternative Dispute Resolution - Level 2
Institute of Peace and Conflict Studies
Conrad Gerbal University College
Alternative Dispute Resolution - Level 1
Ontario Ministry of Labour
Joint Health and Safety Committee
Certification Training
International School of Investigation and Protective Services
Diploma
Registered and Approved as a Private Charter College
under the Private Career Colleges Act – Ontario Canada - Certificate Authentication Code: OH-113-433-951-621
Ryerson University
Gerontology Certificate
Ryerson University
Bachelor of Applied Arts
Professional Memberships
AdvantAge Ontario
ASIS International
Association of Threat Assessment Professionals
Canadian Association of Home Economics
Canadian Association of Threat Assessment Professionals
Ontario Association of Home Economics
How I can help with Workplace or Resident Abuse Investigations?
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