One of the ads was set to be placed on a billboard near Invesco Field at Mile High.

Some people are concerned that the billboards will send the wrong message.

The billboards will say nothing about what Initiative 100 is and won't make any reference to the issue legalizing marijuana. They feature a downcast woman with a black eye with her abuser lurking in the background. The slogan is "Reduce Family And Community Violence ... Vote Yes On I-100."

Mason Tvert, director of a group called Safer Alternative For Enjoyable Recreation, said Initiative 100 would lead to a safer city if it were passed.

"If this passes it will make the city of Denver safer by allowing adults over 21 to use marijuana as an alternative to alcohol," Tvert said.

Tvert believes alcohol is what fuels crimes, such as, domestic violence and lifting the prohibition on marijuana will reduce incidents like these.

"We're clearly sending a message that the use of alcohol is acceptable and we're encouraging folks to use it when many of them would otherwise be willing to use a far less harmful substance," Tvert said.

Opponents say supporters are hiding the real issue.

"This initiative will not put more cops on the street," Denver City Councilman Charlie Brown said. It will put more marijuana on the street, and how you can relate that to making a city more safe ... it's just incomprehensible to me."

The billboards are being paid for by a group from outside Colorado. The group last week rejected calls to drop the ad campaign, but on Monday they said they were going to hold a press conference on Wednesday to address the issue.

Ellen Stein Wallace, director of Safehouse Denver, called the billboard outrageous.

"It really minimizes the brutality and lethality of the issue. And it's almost as if they're saying this would go away if people just smoked enough marijuana to chill out," Wallace said.

Wallace pointed out that Safehouse Denver has served plenty of women whose batterers smoked marijuana.