The Computer Crime and Intellectual Property Section of the U.S. Department of Justice gathered information about the retention periods for call details, cell tower information, text message content, pictures, and other types of data. This information has been posted online by the ACLU.
Reports and Publications
This guide contains addresses and phone/fax numbers for the legal departments/subpoena compliance centers of cellular providers and social media sites. Please be aware of 2014 Formal Ethics Opinion 7 when issuing subpoenas. John Rubin’s 2017 blog post on subpoenaing-of-state materials is available here. Email Sarah Rackley Olson if you have any corrections or updated information for the subpoena guide.
Larry Daniel addresses common issues with child pornography cases in this guide. Topics include what information an expert will need and what services an expert may be able to provide. Daniel provides an explanation of technical terms commonly used in these cases.
This guide, prepared by Larry Daniel, provides information on the collection, preservation, and authentication of Facebook evidence from a digital forensics perspective.
The NC State Crime Laboratory has posted its DNA Section Audit Reports (1999-2018). If you would like a summary of these audits, with issues that may be relevant to casework highlighted, email Sarah Rackley Olson.
Guidelines for detector dog training, procedures, and care. Failure of a dog/handler team to implement these national-level guidelines may be a source of cross examination.
National Center for Prosecution of Child Abuse publication that provides information on how to rebut specific defense arguments.
Office of Juvenile Justice and Delinquency Prevention publications that might be helpful in evaluating how a child abuse investigation was carried out.
Centers for Disease Control and Prevention guide that teaches techniques for investigating child deaths, including scene investigation, interview techniques, and reporting practices for investigators.
The bibliographies (here and here) contain citations to published articles on bite mark analysis. If you need access to these articles, contact Sarah Rackley Olson.
Article by the Innocence Project identifying concerns with bite mark analysis and discussing five cases where individuals were convicted based largely on bite mark analysis, only to be proven innocent through DNA years later.
See pp. 106-118 for bite mark methodology guidelines, including methods to preserve bite mark evidence (p. 107), bite mark analysis guidelines (p. 112), bite mark terminology guidelines (p. 114), and guidelines for investigative and final bite mark reports (p. 117). The American Board of Forensic Odontology has an expert locator service available here.
This 2012 report by Paul Bieber of the Arson Research Project finds that cognitive bias is found in the field of fire investigation. Makes recommendations for how to minimize these biases.
by Marc Price Wolf, Minnesota Journal of Law, Science & Technology (2009). Describes the shift in methodology and foundational principles that the field of fire investigation has undergone recently and discusses how habeas corpus relief can be utilized in arson cases.
This New Yorker article by David Grann provides and in depth investigation of the flaws in the Cameron Todd Willingham case.