Crime Scene Investigation: Methods and Procedures by 
Criminal investigation is an applied science that involves the study of facts that are then used to inform criminal trials. A complete criminal investigation can include searching, interviews, interrogations, evidence collection and preservation, and various methods of investigation. Modern-day criminal investigations commonly employ many modern scientific techniques known collectively as forensic science.
Criminal investigation. (2020, August 20). In Wikipedia. https://en.wikipedia.org/wiki/Criminal_investigation
The Art and Science of Criminal Investigation
Criminal investigation, courtroom testimony, forensic science, news, reviews & editorials
Established in 1935, the BCI is the plainclothes detective branch of the New York State Police, with over 1,000 investigative personnel in its ranks. BCI investigators work to solve:
Crime Scene Investigator Network
Crime scene response, evidence collection, scene and evidence photography, colleges and training, employment and more
National Clearing House for Science, Technology and the Law (NCSTL)
The NCSTL assembles the scientific, technological and relevant legal resources into a "one stop" searchable database.
The NLECTC plays a critical role in enabling the Office of Science and Technology to carry out its critical mission to assist state, local, tribal, and federal law enforcement, corrections, and other criminal justice agencies in addressing their technology needs and challenges. Has links to JUSTNET news, publications, TechBeat, and AskNLECTC.
Practical Investigation Techniques by 
