Violence Against Children Act of 2009

Violence Against Children Act of 2009 - Directs the Attorney General to: (1) provide technical, forensic, prosecutorial, and other assistance to state, local, and Indian tribal governments for the criminal investigation or prosecution of felonies against persons under 18 years of age; and (2) award grants to develop and strengthen effective law enforcement and prosecution of crimes against children and to provide education, prevention, intervention, and victims' assistance services for such crimes.

Requires states receiving grants under this Act to use the National Incident-Based Reporting System to report crimes against children.

Requires the Secretary of Health and Human Services (HHS) to develop model training and caseload standards for child guardians in child abuse and neglect cases.

Mynisha's Law - Authorizes a local or tribal government to apply to the Attorney General for designation as a high intensity gang activity area. Requires the Attorney General to: (1) establish criteria for reviewing such applications; and (2) establish an Interagency Gang Prevention Task Force to coordinate federal assistance to such high intensity gang activity areas.

Amends the Omnibus Crime Control and Safe Streets Act of 1968 to allow the use of school security grants for: (1) the placement of surveillance equipment in schools; and (2) the establishment of hotlines or tiplines for reporting potentially dangerous students and situations. Establishes an interagency task force to develop advisory school safety guidelines.