Final answer:
The number of bit-stream copies made of original digital evidence varies depending on the forensic protocols and legal requirements, but at least two copies, including the working copy and a backup, are typically created.
Step-by-step explanation:
To determine how many bit-stream copies are made of the original evidence, it is essential to adhere to the guidelines of digital forensics and best practices for ensuring the integrity of the evidence. This practice typically involves making an exact, sector-by-sector copy of the original digital evidence to preserve the data in its unaltered state before any analysis is conducted. The number of copies made can vary depending on the protocols of the forensic team or the legal requirements of a case. However, there is usually at least one copy made for analysis, known as the working copy, and one or more backups.
In most scenarios, at least two copies are made: one for examination and one as an archival backup. If additional copies are required for other purposes, such as for providing to different parties in a legal case, then more might be created. But there isn't a standard fix number of bit-stream copies universally applicable to all situations, it depends on the specific case and requirements. Without more context, it's impossible to determine the exact number of copies made for the scenario presented in your question.