Soon voters will get a chance to decide on whether to legalize marijuana. Police are worried if the proposition passes in November it could affect all of our safety on the roads. But, a Bay Area company is one step closer to helping identify drugged drivers.

At a recent sobriety check point in San Francisco, police looked for valid driver's licenses and made sure people weren't driving drunk.

San Francisco police Sgt. John Bragagnolo estimates one in four drivers they stop for driving under the influence is driving high on pot.

"Marijuana has become just as strong, if not stronger of a problem with driving as alcohol," said Bragagnolo.

Proponents of the Adult Use Marijuana Act say it is time to shine a light on what is already a well-established industry in California that needs to be regulated.

“The time is right, the support is there . . . and this takes a new approach to changing a system that does not work,” said Jason Kinney, a spokesman for Yes on 64.

Kinney and other supporters point out that a large portion of California’s population already smokes marijuana in some capacity or another, creating a tax-free, billion-dollar industry.

The U.S. Substance Abuse and Mental Health Services Administration reports that more than 2.5 million adult Californians use marijuana, the most of any state by far. That is from 2012 census data.

If voters legalise marijuana in California on 8th November the cannabis industry can expect sales to increase to $6.5 billion by 2020, a new cannabis industry marketing report predicts.

Cannabis investors can expect 18.5 per cent sales growth a year in California if Proposition 64 passes, according to The State of Legal Marijuana Markets, published by New Frontier Data and ArcView Group. The 2016 report says: ‘Legalisation of cannabis is one of greatest business opportunities of our time and it’s still early enough to see huge growth.’

In 2015, medical marijuana sales in California were $2.7 billion, the study noted.

Mexican President Enrique Pena Nieto, who has proposed liberalizing his country's drug laws, privately asked California lawmakers visiting Mexico about a state measure to legalize recreational marijuana, a state legislator said on Thursday.

A delegation of California Democratic lawmakers visiting Mexico talked for an hour on Wednesday with Pena Nieto about trade and the state's border with Mexico.

During the meeting, Pena Nieto brought up the November ballot measure without getting into details, California state Senator Ben Allen said in an interview.

"But they're clearly paying close attention," he added.

After covering administrative costs, here are some uses for the remaining tax revenue if voters approve Prop. 64:

• $10 million, increasing to $50 million annually by 2022, for grants to local health departments and nonprofits that support addiction treatment, job placement, mental health treatment and other services for communities hard-hit by previous drug policies.

• $2 million annually to the UC San Diego Center for Medical Cannabis Research to study marijuana as medicine.

The remaining revenue will be divvied up to include:

In a first-ever for California, patients at Marin General may soon be allowed to consume medical marijuana in the hospital.

If members of the Marin Healthcare District approve the resolution introduced by Dr. Larry Bedard at Tuesday’s meeting, the hospital’s staff would begin a review process examining the legal and medicalimplications of using medical pot at the acute-care center.

A new poll is fuelling uncertainty about how Californians will vote come November concerning Proposition 64.   

The poll, released by the Southern California News Group and KABC/Eyewitness News on Monday, found that voters are likely to approve the proposal to legalize the recreational use of marijuana – but only by 52 percent. Forty per cent of those polled stated that they would vote No on Proposition 64, while eight percent stated that they were undecided. Zero per cent stated that they would not be voting at all.

Past polls on the question of Proposition 64 have come up with mixed results.

Law enforcement officials in California for the first time have field-tested a pioneering marijuana breathalyzer, which also has been touted as the first device of its kind to detect edible pot products on drivers' breath.

The announcement was made on Tuesday by Hound Labs Inc, an Oakland-based scientific-device company that was founded in 2014 by Dr Mike Lynn, and emergency room doctor and reserve deputy sheriff with the Alameda County Sheriff's Office.

The company's marijuana detector, dubbed The Hound, promises to give law enforcement immediate measurements for the few hours that tetrahydrocannabinol - the principal ingredient in marijuana - is present in a person's breath.

Israel’s hospitals, according to health care industry insiders, have pioneered the use of cannabis administration in hospital settings.

“I want to have Marin General be the first hospital in California to openly and transparently allow patients to use medical cannabis,” said Dr. Larry Bedard, who practiced emergency medicine as a former physician at Marin General.

Bedard isn’t some lone-nut calling for bake sessions in sterile hospitals. He wrote the rebuttal to the argument against Proposition 64, appearing on Nov. 8 ballot to legalize recreational marijuana in California for adults ages 21 and older.

Thousands of stoners in suits, activists, cannapreneurs and industry executives gathered Sept. 7-10 at the Los Angeles Convention Center for the Cannabis World Congress and Business Exposition. The event brought people from all over the world who are interested in finding success in the cannabis industry, and learning about all aspects of the new frontier. What an event to this scale proves is  that we are heading into a new era, one that respects the fact that the cannabis industry can yield some of the worlds most successful business women and men.