The police who legally pull the driver no longer need reasonable grounds to demand a take on their breathing.
New changes in the Penal Code, which come into effect on Tuesday, give officials more powers in the screening of alcohol drivers to drive debilitating driving and deadly collisions on Canadian roads.
Suspicion can arise from the scent of alcohol in breathing, blurring or driver's strange behavior.
"Officials no longer have to express this suspicion," said Const. Chad Morrison from Nova Scotia RCMP.
"If an official is a roadside vehicle and a vehicle, they automatically have the right to ask each driver to take a sample of his breathing".
MADD Canada has been working on the mandatory alcohol law law for the last 20 years, says Anissa Aldridge, Atlantic director of the organization.
Countries such as New Zealand and Australia have similar legislation to prevent degraded driving.
"We are really excited and grateful that this is coming into effect," said Aldridge.
"We know that we are researching other countries where they use the compulsory screening test for alcohol, that it has had a huge impact on the driving of individuals while driving, and has significantly reduced the ability to drive."
Aldridge said that MADD doubts the new legislation under Bill C-46, reducing the downturn by up to 20 percent – or about 200 people annually.
However, some legal experts feel that the new legislation is likely to be too broadly challenged in the courts. According to the Canadian Charter of Rights and Freedoms, "everyone has the right to safeguard unreasonable search or seizure".
It is not entirely clear how or when officials use a new law, but Morrison said he believed that "most drivers who come into contact with the police will be inspected."
An exception to this could be a busy checkpoint where a breathing mass from each driver would be time consuming and long-lasting.
Inspection points and other officials carrying out transport initiatives are expected to reinforce the criteria for using a new authority on time, including timing, says Morrison.
He said that critical officials document their practices and actions, so there are no allegations that target a particular person or group of people. "
Morrison officials are also upgrading training in ethics and justice.
"Our training and our policies want to take care of it [mandatory alcohol screening] could be used as a means of targeting the police to certain marginalized groups, "he said.
"We will only ensure that the police use it fairly ethically."