Dallas MackTwitter   email   LinkedIn   Google+

Dallas Mack, creator and blogger at Mack's Criminal Law, is a graduate of the University of Ottawa with a BSc, Honours Chemistry, and an LLB.  After graduating with his LLB in 2001 Dallas articled at the Crown Attorney's office in Ottawa and was hired after his call to the bar of Ontario in September 2002.  

Dallas regularly prosecutes criminal matters in the Ontario and Superior Courts of Justice and has argued appeals at the summary conviction appeal level and the Ontario Court of Appeal.

In addition to his work as an Assistant Crown, Dallas was a co-author of the Crown Weekly Netletter (Lexis-Nexis Quicklaw) from 2002 until September 2010.  Presently he authors a number of publications including Mack's Criminal Law Bulletin, published on Westlaw's CriminalSource, Mack's Expert Evidence Compendium, a Thomson Reuters ProView product and Mack's Criminal Law Trial Book, published by Thomson Reuters [see Publications]. Over the past few years Dallas has also published papers on topics ranging from impaired driving to investigative detention [see Publications].

For several years Dallas was an adjunct professor at the University of Ottawa, Faculty of Law, where he taught Forensic Science and Criminal Law. He regularly lectures for the Ottawa Police Service and the Ontario Crown Attorney's Association on topics including impaired driving (alcohol and drugs) and search and seizure. He is also a member of CanFRWG.

Dallas is the recipient of the Nelligan O'Brien Payne Award, an Excelsior Award (from the Ministry of the Attorney General, Ontario), the OPP Commissioner's Commendation and the Prosecutor of the Year Award (from the International Association of Financial Crime Investigators). 



Julian Daller

Julian Daller holds a BA and MA in Philosophy, and a law degree, each from the University of Ottawa.  During law school he obtained a specialization in environmental law, while working at both the Ecojustice Clinic and the IUCN Academy of Environmental Law.  He served as a senior editor of the Ottawa Law Review, and completed internships both with a criminal defence firm in Western Canada, as well as with a Member of Parliament engaged in federal environmental law reform.

He first joined the Ottawa Crown Attorney’s office for his articles in 2011, where he has continued as an Assistant Crown Attorney since his call to the bar in 2012.  His practice includes animal abuse, Charter litigation and criminal prosecutions before both the Ontario and Superior Courts of Justice.

Matthew Geigen-Miller

Matthew Geigen-Miller graduated from Osgoode Hall Law School in 2009. During law school Matthew worked for a sole practitioner who practices in the areas of mental health law, coroner’s inquests, and public inquiries. He completed the Intensive Program in Poverty Law at Parkdale Community Legal Services, where he acted as a student caseworker in the Workers’ Rights Division. After graduating Matthew articled for the Ottawa Crown Attorney’s Office. Matthew has worked as an Assistant Crown Attorney since he was called to the bar in 2010.

Brian Holowka

Brian Holowka history and economics at the University of Ottawa and then attended law school at Osgoode Hall Law School where he graduated with an LLB in 1991. While at Osgoode Hall, Brian was a student in the Intensive Program in Criminal Law. Brian then articled at Greenspan, Humphrey, a boutique criminal defence firm in Toronto.

Following his call to the bar of Ontario in 1993, Brian clerked for the Ontario Court (General Division) and then joined the Crown system in 1994. He has worked as an Assistant Crown Attorney in both York and Peel Region until he joined the Ottawa Crown Attorney’s Office in 1999. He is presently a Deputy Crown Attorney in Ottawa.

Brian prosecutes and supervises prosecutors in the Ontario and Superior Courts of Justice and the Ontario Review Board. He is an active wiretap agent and a member of the Ontario’s Child Homicide Resource Team.

Brian is active in educating both Crown prosecutors and police officers in the law related to search and seizure, wiretapping and criminal organizations.  He is a director of the Ontario Crown Attorney’s Association/Ministry of the Attorney General Complex Prosecution Summer School. 

Lauren Rock

Lauren Rock has a B.A.(H) from the University of King’s College in Halifax, Nova Scotia in the History and Philosophy of Science. 

During University summers, she was a bicycle courier in Manhattan, and a vegan juice bar tender in its West Village.  Later, to fund a trip around the world to hike, camp, dive, and work with her best friend through Hawaii, Australia, South East Asia, and New Zealand, she did a short lucrative stint as a grave digger.

After a year of travel, Lauren completed a J.D. at the University of Toronto, Faculty of Law.  At law school, the focuses were human rights and state responsibilities, criminal law, and the link between economic and criminal justice.  She co-led an international human rights working group of students to provide legal research, writing, and analysis for Stephen Lewis’ NGO, “Aids-Free World”; the NGO had projects in Democratic Republic of Congo, and Kenya, where profit, politics, and crimes against women’s bodies always went together.  The NGO had earlier collected overwhelming testimonial evidence in covert circumstances to establish brutal political rape campaigns orchestrated by Mugabe in Zimbabwe, creating a case brief for regional institutions to prosecute.  Lauren later worked directly for Aids-Free World, setting up a Kenya desk to collect intel and contacts around the field research question of how best to shepherd a hybrid international/Kenyan tribunal to prosecute political rape in the “post-election violence” of late 2007.  

Returning to school for a final semester on exchange in London England, the last tact was to study the field of International Investor-State Arbitration, and International Securities Regulation, as possible avenues for global justice gains.  Lauren returned to Canada and Articled with Justice Canada at Headquarters, mostly rotating through internationally oriented Sections and litigation groups. 

Alas, somewhere along the way from the history of ideas to the reality of complex international injustices: political, social, and economic, Lauren realized it only made sense to start working for justice at home, “in the trenches”.  Leaving the Department of Justice International Legal Programs Section where she had been hired back after Articles, she began on a per diem basis to work as an Assistant Crown Attorney for the Ottawa Crown’s Office.  A deep passion for the work quickly led her to pursue opportunities throughout the East Region and eventually afforded the privilege of working for the Crown Attorney for the District of Manitoulin.  She recently arrived in Renfrew County where she currently works as an Assistant Crown Attorney.

Sarah Sullivan

Sarah Sullivan is currently completing her articles with the Barrie Crown Attorney’s Office, with an anticipated call date of June 2015. She completed her law degree at the University of Ottawa, graduating cum laude. During law school, she completed an intensive student internship with the Ottawa Crown Attorney’s Office, and subsequently focused two directed research projects on criminal prosecutions. Sarah is a national moot champion, having won the Sopinka Cup Criminal Law Moot with her teammate in 2014. She was awarded Best Direct/Chief Examination, and brought the national title to the University of Ottawa for the first time.

Prior to studying law, Sarah graduated from York University summa cum laude with a Bachelor’s of Environmental Studies and a minor in Geography. She participated in a number of international field courses in Costa Rica, Hawaii and Australia; with a primary focus on conservation and ecology.

Upon being called to the bar, Sarah aspires to continue in her career as an Assistant Crown Attorney.

Louise Tansey: Twitter

After obtaining a BA in psychology and geography from Concordia University, Louise Tansey attended the University of Ottawa where she completed her LL.B (2008) and LL.L (2009).

While attending law school, Louise worked as a research assistant to the Cornwall Public Inquiry where she co-authored a paper entitled "Non-Familial Child Sexual Abuse: Sentencing Trends in Alberta, Ontario and Quebec 1968-2008". Louise also worked as a research assistant to several law professors where she lectured and assisted in the publication of articles and texts in the fields of environmental and Aboriginal law.

While completing her civil law degree, Louise worked at the Aboriginal and Circumpolar Affairs directorate of the Department of Foreign Affairs and International Trade where she conducted research and drafted materials for Government of Canada publications.

Upon completion of law school Louise articled at the Ottawa Crown Attorney's office where she was hired after her call to the bar of Ontario in 2010.Louise now prosecutes criminal matters in both official languages before the Ontario Provincial and Superior Courts of Justice. 

Forensic Science Site Contributors

Jessica Dixon

Jess is a student at the University of Ottawa's Faculty of Law, expecting to graduate in May 2013. Jess reports developing a keen interest in the issues arising from the intersection of the rules of criminal law and evidence with the practical discipline of forensics after taking my "Forensic Science and the Criminal Law course at UofO. She hopes to work as a prosecutor upon copmleting her articles and call to the Bar. 

Kristen Thomasen

Kristen recently graduated from the University of Ottawa Faculty of Law. She is currently articling in Alberta at the Court of Queen's Bench and lter at Alberta Justice, after which she will return to Ottawa to clerk for the Honourable Madam Justice Rosalie Abella at the Supreme Court of Canada. She developed a love of criminal law in her second year of law school after taking the course Evidence and Forensic Science and the Criminal Law. She has a penchant for thinking about the interaction between technology and privacy, particularly in the criminal context, and hopes to continue working in the criminal law domain after completing her clerkships. 

Reg Brown

Reg is a third year law student at the University of Ottawa’s Faculty of Law, graduating in May 2013.  Though he plans to practice business and commercial law, he has maintained an avid interest in criminal law since his time at Carleton University, where he graduated with a B.A. in Honours Law. Reg is the author of our forensic science sections on polygraph, forensic pathology and forensic psychiatry.

Cesare Plastina

Cesare Plastina is entering his third year at the University of Ottawa’s Faculty of Law. This past academic year he served as the Common Law Student Society’s Vice-President of Finance. This summer he is working in Toronto with Boghosian and Associates Professional Corporation, focusing on Municipal Liability and Insurance litigation. He graduated with distinction from the University of Toronto with a joint specialist in Political Science and History, with a focus on the Canadian Military and War-Time Politics. In his spare time, he coaches the Vaughan Vikings 1993 Minor Bantam baseball team, and plays baseball for the Vaughan Expose of the Ontario Senior Baseball Association. 

Other Contributors

Michael Giglio

Michael V. Giglio, BA, JD of the Ontario bar is a legal researcher, editor and writer in Toronto with a special interest in criminal and quasi-criminal law.

Michael received his BA from Trinity College, University of Toronto and his JD from Osgoode Hall in 1993; he was called to the Bar in 1995.