At the scene of a crime, an evidence marker sits next to a pool of blood while an investigator's camera catalogs the scene. Explore how blood evidence is collected, how it's tested at the lab, and how scientists match the blood to a suspect in this engaging high/low book.
Ages 9-12
About the author
Grace Campbell lives in Saint Paul, Minnesota, with her husband and their dog. She enjoys making things with her hands, including sweaters, cookies, and books.
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