John Karr's lawyer is asking that the child pornography charges against the one-time suspect in the JonBenet Ramsey case be dismissed.
Authorities have admitted losing important evidence in the case.
A judge this week agreed to consider dropping five misdemeanor charges.
She's also criticized prosecutors for not telling her sooner that a computer that allegedly held pornographic images was lost.
The sheriff's department says it copied the contents of the hard drive and printed out five illicit photographs.
Karr has refused a plea deal in the case from 2001.
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