- The act of saving or conserving testimony for future use in a trial, particularly through a deposition. This is especially applicable when the collected evidence would otherwise be unreachable or misplaced
- The lawyer decided to perpetuate the witness's account to have as evidence for the upcoming trial.
- Using video conferencing, they were able to perpetuate the testimony of the remote witness.
- The defense team worked around the clock to perpetuate all the essential pieces of evidence before they were lost.