Troubled AMANDA BYNES forcibly hospitalized on involuntary psychiatric hold.

Bynes had reportedly set a small fire in a household driveway outside a retirement community in Thousand Oaks, Calif. when she was confronted by law enforcement

After questioning the one time kid vid star, sheriff's deputies determined she needed to be placed under the California 5150 hold.

The 5150 gives police, social workers and other mental health professionals the authority to temporarily institutionalize under psychiatric care if the person is considered a danger to themselves or others, or is mentally disabled.  

 Bynes‘ concerned parents, Rick and Lynn, haven’t spoken with their daughter since she was hospitalized  but are reportedly considering getting a conservatorship not unlike Britney Spears' father was granted after her shocking meltdown .