Police say a 4-year-old girl demonstrated to them how to smoke marijuana from a joint, a pipe and a bong — and learned the techniques from her mother.

The mother, 25-year-old Lisa Schuchard, is charged with child abuse and could lose her daughter after being accused of teaching and encouraging the girl to smoke.

Her attorney, Douglas County Assistant Public Defender Doug Johnson, said he would not comment because he hadn't talked to Schuchard in depth.

Authorities say Child Protective Services received a complaint that the 4-year-old and a 2-year-old son of Schuchard were dirty and living in a filthy home that had drug paraphernalia around.

Police say the daughter told officers that Schuchard and her live-in boyfriend would offer her and her brother the marijuana, then laugh with friends when they smoked. Authorities say the children have been placed in foster care.