What two substances should be added to a blood sample after collection and why?

What will be an ideal response?


An anticoagulant should be added to the blood sample to prevent clotting; a preservative should be added to inhibit the growth of microorganisms capable of destroying alcohol.

Criminal Justice

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How does the criminalist record a tool mark for comparison when removal of the original tool mark is impractical?

What will be an ideal response?

Criminal Justice

This type of security technology works to "scramble" computer messages and/or data

a. Backups b. Firewalls c. Encryption d. Passwords

Criminal Justice

Which of the following was not a common edict of the Slave Code?

a. Slaves were considered human not property. b. Slaves could not testify in court. c. Slaves could not leave the plantation without permission. d. Slaves who were killed were often not classified as murdered.

Criminal Justice

Which low-level analyst released documents detailing some of the NSA's spying activities in 2013?

A) Julian Assange ?B) Edward Snowden C) Reality Leigh Winner ?D) Bradley Manning

Criminal Justice