Child Protective Services are gunning after rapper, Rich Homie Quan for exposing his one-year-old son to weed.

This comes after the rapper posted a video on Snapchat of him smoking what looks like a wrap of weed/marijuana in front of his young child.

According to TMZ, sources say Georgia authorities saw the video of RHQ's 1-year-old on his lap as he smoked and were worried. Child Protective Services and the Fulton County Police Department have now teamed up to investigate the rapper's ability to be a good parent.

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The site claims the Child Service wants to sit down with Quan and ask a slew of questions to find out exactly what he was smoking infront of the child? They also want to know if this was a one-off or his standard operating procedure.

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Law enforcement tells the site that the probe goes beyond RHQ's fitness as a parent ... he could face possible criminal charges, including endangering a child and reckless behavior.