SNOHOMISH, W.A.--Attorneys for a Washington state woman charged with murder are reportedly headed back to court next month to argue that she be allowed to eat Cocoa Puffs cereal and other sugary snacks while awaiting trial in county jail.

A judge will decide during a hearing scheduled for March if jail staff must allow the woman access to the Snohomish County Jail's commissary, the Everett Herald reports.

Attorneys for Holly Grigsby and David "Joey" Pedersen filed motions last week complaining about jail conditions and that their clients are not allowed to use the jail store to supplement their meals. A hearing on the complaint continued for more than two hours on Feb. 13.

The pair allegedly killed Pedersen's father, David "Red" Pedersen, and his wife, DeeDee, of Everett, last September. Authorities also believe they killed two other people -- an Oregon teenager and a disabled California man -- in October before their capture in northern California, the newspaper reports.

Snohomish County Jail officials said inmates like Grigsby and Pedersen are denied commissary rights since they are maximum-security prisoners and because sugary snacks can be used to make jailhouse alcohol. Grigsby wanted to buy Cocoa Puffs and coffee.

Grigsby's defense lawyer, Pete Mazzone, told the newspaper that it violates his client's constitutional rights to deny her access to the commissary based on the nature of the charges against her.

Grigsby has received several violations since she's been incarcerated, including trying to brew alcohol in her cell, the newspaper reports.