You are a crime scene technician and have been called to process a sexual battery and assault. After photographing evidence and conferring with the first officer on the scene, you begin to collect items of evidence. You collect bedsheet which contains possible traces of semen and blood, as well as a washcloth from the victim's bathroom. The bedsheet samples appear "wet." The washcloth you've collected, however, appears dry and is tightly wadded together. You are then asked to go to the hospital where the victim will complete a medical examination. This is the last call you have to process on your shift. You will then be off for the next threedays. With this information, answer the following questions:

1. How do you collect the possible traces of semen and blood from the bedsheet?
2. How do you collect the bodily fluid (if any) found on this washcloth?
3. What aspects of packaging and preservation of bodily fluids must you keep in mind with this type of evidence?
4. While not explicitly stated, what kinds of precautions would you take to prevent contamination of this type of evidence?