John Rosen

John Rosen
Rosen & Company Barristers
Appellate, Criminal, White Collar Defence & Investigations

John Rosen, founder of the Toronto firm Rosen & Company Barristers, has defended more than 300 accused murderers over his more than 45 years as a criminal lawyer. He specializes in criminal cases, regulatory offences, professional disciplinary cases and appeals.

He received is L.L.B. from Osgoode Hall Law School in 1968 and was called to the Ontario bar in 1970.

Mr. Rosen is a member of a number of professional associations, including the Advocates' Society (where he twice served as director), the Criminal Lawyers’ Association (where he’s held a number of executive positions), the National Association of Criminal Defence Lawyers in the U.S. and the Canadian and American Bar Associations.

He is a recipient of the Law Society Medal from the Law Society of Ontario.

Mr. Rosen practises as a trial and appellate lawyer in the areas of criminal, regulatory and discipline law, representing a wide variety of clients, both individuals and corporations, in all levels of court in Ontario and at the Supreme Court of Canada. He has appeared in some of the most highly publicized and complex criminal cases in Canadian legal history, including the Paul Bernardo case.

Mr. Rosen has appeared as counsel in the United States Federal Court, the British Columbia Supreme Court, the B.C. Court of Appeal, and the Grand Court of the Cayman Islands.

He also provides legal services to indigent persons pro bono and under Legal Aid Ontario in selected cases, and volunteers with a number of non-government organizations.


John Rosen In The News
OCA decision highlights challenges of sexual assault cases

An Ontario Court of Appeal (OCA) decision that ordered a new trial in a “he-said, she-said” date-rape case is a thorough judgment that sets out the difficulty that ... Read more

Canada must investigate terrorist suspect

Before a British-Canadian man accused of joining ISIS in Syria is allowed to re-enter this country, a thorough investigation of his activities must be carried out by Canadian ... Read more

No free pass for suspected ISIS fighters returning to Canada: Rosen

The recent debate in Parliament between Prime Minister Justin Trudeau and Andrew Scheer, the Conservative leader, about what to do with Canadian citizens who return home after ... Read more

The complexities around the Harvey Weinstein scandal

With  investigations  into sexual assault allegations against Harvey Weinstein happening in several jurisdictions with multiple complainants in the United States and ... Read more

Onus on accused in murder cases to show cause for bail

The bail decision in the case of an Ontario neurosurgeon accused of killing his wife points to some of the misconceptions around bail in murder cases in Canada, says Toronto ... Read more

Resolution of crossbow case avoids consecutive sentences

TORONTO — A Toronto man was formally handed a life sentence Friday after pleading guilty to the so-called ``crossbow killings'' of his mother and two brothers last August. ... Read more

The trouble with technology and the courts

The cost associated with new technology and the speed at which change happens is partly to blame for Ontario’s judicial system not keeping up with advances, Toronto criminal ... Read more

SCC ruling in Cody clarifies the legal test for delay timelines

OTTAWA — The Supreme Court of Canada is standing by its groundbreaking decision on ensuring timely criminal trials. In a unanimous decision Friday, the court ruled that a ... Read more

The importance of mentoring, collegiality and co-operation: Rosen

In speaking at an upcoming event for counsel and judges, Toronto criminal lawyer  John Rosen  hopes to promote the importance of mentoring, camaraderie, and fostering ... Read more

AG's plan doesn't address 'systemic' court problems

Ontario’s Attorney General Yasir Naqvi's plan   to help more accused get bail and to keep weak cases from going to court doesn’t go far enough to ... Read more

Guilty plea, assisting police factored into man's sentencing

The 21-year-old man found guilty of manslaughter in the death of a Markham woman last year pleaded guilty and assisted police in the investigation, which were factors the judge ... Read more

Cartel cases face new scrutiny post-'Chocolate'

More than a year after the stay of proceedings in  R. v. Nestle Canada Inc ., — known as the  Chocolate case  as it involved criminal allegations of price ... Read more

Gruesome court cases can take toll on lawyers, jurors

By the time Shayne Lund's court case wrapped up this week, his lawyer had spent three years dealing with evidence relating to sex crimes against children and animals, wading ... Read more

Most clients see defence counsel 'doing their best to help'

Although there are still many questions as to the motive behind the recent shooting of a member of the criminal defence bar, Toronto criminal lawyer  John Rosen tells the ... Read more

Cameras have no place in the courtroom: Rosen

With the long-standing debate over cameras in the courtroom continuing in the recent Travis Vader murder trial in Alberta, Toronto criminal lawyer  John Rosen tells ... Read more

Clement's comments on jailing people not accused of a crime 'undemocratic'

OTTAWA – Conservative leadership candidate Tony Clement says if people at high risk of committing terrorist acts cannot be monitored around the clock, they should be ... Read more

John Rosen re-launches Rosen & Company Barristers

Toronto criminal lawyer  John Rosen  has restructured his firm effective July 1, as Rosen & Company Barristers . “I will continue to pursue the same kind ... Read more

Ghomeshi matter: lessons learned and the need for more education

With the second Jian Ghomeshi criminal proceeding over, after the former CBC star signed a peace bond and apologized, Toronto criminal lawyer John Rosen says it appears to ... Read more

Lack of complainant credibility led to Ghomeshi's acquittal: Rosen

Former CBC host Jian Ghomeshi was found not guilty of sexual assault and choking charges because the complainants weren’t credible and their testimony not always consistent, ... Read more

Appeal of expert admissibility often a path to new trial

In a criminal case, appealing the admissibility of an expert witness is a well-travelled route to a new trial, Toronto criminal lawyer  John Rosen  tells CBC News . ... Read more

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