The defense team is asking to check the hard drive that was taken into evidence last summer from Hernandez's North Attleborough home during the initial investigation into Odin Lloyd's murder.
According to the filing, the defense says it was given a copy of the surveillance, but claims some of those clips are blank, skip around, or contain breaks with no explanation. Lawyers say they want to make sure the time stamps they have match up with the originals to rule out any possible alteration.
Hernandez is expected back in a Full River court later this month. His last appearance was in Suffolk County where he pleaded not guilty in a 2012 Boston double murder.
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