term:

Reconstruction

reconstruction n

1 : a rebuilding of a nonfunctional patented article that amounts to creation of a new article and constitutes infringement of the patent [the complete replacement of the mechanism was a and not a repair]
2 : the practice or process of recreating an incident (as an accident) for the purpose of investigating the specific facts and circumstances surrounding it [heard testimony on the speed of the vehicle from an expert in accident ]