Utilizing DNA Technology to Solve Cold Cases Act of 2010 - Requires the Attorney General to adopt policies and procedures to ensure that: (1) the Federal Bureau of Investigation (FBI) may conduct familial searches for DNA samples collected from crime scenes; (2) state law enforcement agencies may request that the FBI conduct such searches in state investigations; and (3) the privacy interests of persons identified in familial searches are protected. Defines "familial search" as a search of the offender index in the National DNA Index System in which a DNA sample from an unknown source collected from a crime scene is compared to such index to determine if a familial match exists between the DNA profile contained in such index and the DNA sample collected from the crime scene.
Allows FBI familial searches to be conducted only if: (1) no identical match for a DNA sample collected from a crime scene can be identified in the offender index; and (2) the investigation for which DNA samples are collected involves murder, manslaughter, a sex offense against a minor, sexual assault, or an offense that involves a sexual act or sexual contact with another and that is punishable by imprisonment for more than one year.