Question: Some academic information about concept of lying in children?

Answer: SIEGAL, M., & Peterson, C. C. (1998).Children's understanding of lies and innocent and negligent mistakes.
Developmental Psychology, 34, 332-343.
SIEGAL, M., & Peterson, C. C. (1996). Breaking the mold: A fresh look at questions about children's understanding of lies and mistakes. Developmental Psychology, 32, 322-334.
Also in R. Bull (Ed.)(2001)Children and the law: The essential readings (189-222). Oxford: Blackwell.