Torontop police say RIDE locations are being given out by Twitter and Facebook users. (Jon Castell/CBC)

Toronto police say they have a new concern in their fight against drinking and driving: Facebook and Twitter.

Police say drivers are using social media to warn other drivers about RIDE program spot checks around the GTA.

On Christmas Eve, one tweet read: "Spotted: #RIDE program on the southbound 400 ramp at Major Mackenzie! #avoidifhammered."

Const. Scott Mills says tweets like that defeat the purpose of the RIDE program.

"Spot checks, one of the key things about it is that it's random and you don't know where they are," said Mills.

Police say tweeting the location of spot checks could help drunk drivers stay on the road and put lives in danger.

Lawyer Gil Zvulony, who specializes in internet law, says the police may not like it, but it's perfectly legal.

"The reason it is not illegal is because the people you are telling aren't necessarily breaking the law, so there's no sort of justice to obstruct," he said.

If people are using social media to warn about spot checks, police say they'll try to stay one step ahead of them by changing their locations frequently.