http://dfw.cbslocal.com/2012/02/02/cps-granted-custody-of-toddler-mauled-by-dogs/ While investigating the dog attack officials with CPS discovered the child’s parents, Patricia Denise and Chance Wayne Walker, both have a history of methamphetamine use. When asked about her drug use Patricia Walker claimed to have been clean for nearly a year and voluntarily gave an oral swab. The test showed the presence of methamphetamines and amphetamines. one week before the attack Chance Jr. had been given over-the-counter medication after being scratched by the dogs that ultimately mauled him. Patricia Walker also told the investigator that one year ago one of the dogs had “nipped a little neighbor girl in the face”.