Cops visited the funnyman's Los Angeles home and detained him for allegedly endangering four children. Officials at L.A. County Department of Children and Family Services reportedly found guns and drugs in the house which they deemed a safety hazard for the kids.
Williams was released from custody on $100,000 (£62,500) bail later on Friday, and he is adamant keeping guns stored in his home is not endangering his children.
He tells TMZ.com, ""How do you keep kids safe without guns? If the police come in and raid my place and break into my gun boxes, you're gonna find guns! I'm not in a gang, what difference does it make?""
Speaking out about the drug allegations, the star added, ""Weed is not a drug.""
Embattled Williams - who has been arrested on several occasions in recent months over allegations including harassment, assault and reckless driving - found himself embroiled in more drama following his release from jail as his pal Marion 'Suge' Knight became involved in a brawl outside a Hollywood club.
Williams had enjoyed an evening out with Knight at the Eden hotspot, but the rap mogul was caught up in a fight outside the venue.
The funnyman was spotted walking away from the brawl, while Knight allegedly clipped a man with his vehicle as he left the scene, according to TMZ.
Williams is set to find out in the coming week whether he will face felony child endangerment charges as the case is due to go before the District Attorney.