Children, who by definition require the guardianship and care of adults, are among the most vulnerable and innocent victims of crimes. Crimes against children include physical and emotional abuse; neglect; and exploitation, such as through child pornography or sex trafficking of minors. Child-related crimes often are perpetrated by parents, relatives, caretakers, and others who are charged with their care and guidance. School officials, physicians, police officers, and other such authority figures are required to report any signs of abuse or exploitation against a child. The following articles cover child abuse, statutory rape, child pornography, sexting, and other crimes against children.