A 20-year-old Shreveport woman has been arrested after her first-grade son brought a rock of crack cocaine to school for show-and-tell.

Police were especially disturbed by the child's understanding of crack cocaine. They said he seemed so accustomed to the highly addictive drug that he thought there was nothing wrong with bringing it to school.

Police did not release the name of the school, saying they are still investigating.

Lachristie Thomas was booked on a charge of improper child supervision, a misdemeanor.

Police say the six-year-old was placed in foster care.