The conspiracy wing of the Republican Party is placing a lot of stock on the contents of the Hunter Biden Laptop.
A Chain of Evidence (aka Chain of Custody) is a process and record that shows who obtained the evidence; where and when the evidence was obtained; who secured the evidence; and who had control or possession of the evidence.
Among the chain of custody holders of the Hunter Biden Laptop include: an unidentified individual who turned the laptop into a Delaware computer repair shop in 2019; the proprietor of that shop (John Paul Mac Isaac, a legally blind Republican Party loyalist); Rudy Giuliani (who lost his license to practice law in New York for “betraying his professional oath by peddling ‘false and misleading’ claims about the 2020 election”); Steve Bannon (who escaped a felony conviction for fraud only through Presidential pardon and is currently on trial for Contempt of Congress); and the New York Post (rated on the far end of ‘Right-Center Biased’ due to story selection that typically favors the Right and Mixed – i.e., borderline questionable – for factual reporting based on several failed fact checks).
In that proving that an item has been properly handled through an unbroken chain of custody is required for it to be legally considered as evidence in court, I’d say that any information obtained from the Hunter Biden Laptop is very possibly seriously tainted and would be thrown out.