Officers were serving a "no-knock" warrant on drug charges for a 20-year-old man who they thought lived at the home, which the Phonesavanh family was visiting while on vacation. The sheriff said there was no indication that a family with four children were in the home, even though a minivan with four children's car seats was parked in the driveway.

The officers threw a "flash bang," or a stun grenade, into the doorway to disorient anyone who might have been inside. It fell into Bou Bou's playpen and exploded.

"Across the country, heavily armed Special Weapons and Tactics (SWAT) teams are forcing their way into people's homes in the middle of the night, often deploying explosive devices such as flashbang grenades to temporarily blind and deafen residents, simply to serve a search warrant on the suspicion that someone may be in possession of a small amount of drugs,"