Anyone know what the US law says about stuff like this? Even if it was a genuine mistake, if anything legal came up, does a court need to accept that the evide

Anyone know what the US law says about stuff like this? Even if it was a genuine mistake, if anything legal came up, does a court need to accept that the evidence is gone and that the data was probably guilt-free? (getting some obstruction of justice vibes that I had in the US in 2019.......)