Final answer:
Social scientific research has led to improvements in police procedures, particularly in the c. collection of eyewitness evidence to prevent suggestibility and wrongful convictions.
Step-by-step explanation:
Social scientific research has been pivotal in addressing the flaws in police procedures and improving the accuracy of collecting eyewitness evidence. This research highlights the suggestibility of eyewitnesses and the importance of non-leading interview techniques and blind photo lineups in preserving the reliability of eyewitness testimony. Furthermore, providing jurors with information about the potential for misidentification helps to prevent wrongful convictions and improves the administration of justice. The guide distributed to police organizations in North America likely focuses on these issues, along with other improved practices for law enforcement officers.