Note: I would like an attribution, for the idea, if you complete this project without me. Backwards time travel is impossible. Thus, technology that claims to potentially time travel backwards, should be renamed “Exact Yet Parallel Past Copying.” Time travel is impossible because the past is unchangeable. Time is linear. However, to create an infallible investigation, one can create a copy of a past event. While the past cannot be changed, the same technology that people attempted to use to change the past can instead create an exact copy of the past, thus nigh infallible forensics. Some updates added. Backwards time travel should be renamed parallel copying of past events. These investigations are only infallible in terms of data. The following research may be especially valuable if the victims had underdeveloped brains during the incident, maybe for being under 25 years old, and or with developmental disabilities. Perhaps those victims should use administrative channels instead of lawsuits for their grievances, as the statutes of limitations may have already expired. And the victims may have struggled to afford attorneys in the first place. More specifically, administrative remedies could help support a safer lifestyle and document the underlying incidents. Published here: https://zenodo.org/records/15467058 . The Gateway Process, magnetic resonance imaging, and quantum computers may technologically implement the project.