What is the best procedure for collecting trace evidence from a homicide victim's clothing?

The best procedure for collecting trace evidence from a homicide victim's clothing involves examining the clothing for trace evidence before transport. This approach is crucial because trace evidence can be delicate and easily lost if proper care is not taken during the collection process. By examining the clothing on-site, analysts can identify specific areas or types of evidence that may require further attention.

Additionally, an initial examination allows for documenting the condition of the clothing and noting any specific locations where trace materials might be present, such as fibers, hair, or other minute particles. Collecting evidence in this manner ensures that critical information is not lost and preserves the integrity of the evidence for subsequent analysis in the lab.

The other options suggest actions that can compromise the evidence collection process. For instance, transporting the clothing without examination may lead to the loss or contamination of potentially valuable trace evidence. Discarding damaged clothing is not advisable as it may still contain crucial evidence that could aid in the investigation. Lastly, waiting to collect evidence until after an autopsy may delay the process and increase the risk of losing trace elements that are more likely to remain intact if collected promptly.