The only explanation is that these records don?t exist.

The DOC and FDLE were required to disclose correspondence from January
1st, 2010, to the present with any federal agency within drug enforcement, FDA,
BOP or DOJ, with regard to the constitutionality and/or efficacy of the chemical
combination in the new protocol from June 8th, 2011. Neither agency provided
these records and each certified they turned over everything they had with respect
to the court?s order. Therefore, the only explanation is that these records don?t
exist.