The state is fighting to reinstate felony charges against a Pleasant Dale man implicated in the death of his 10-month-old daughter.

Felony charges against Lucas Peterson were dropped earlier this year by Seward County District Court Judge Alan Gless. Gless says investigators last year told Peterson he would not face felonies if he told them were they could find his daughter, Trista.

Peterson then led police to his daughter's body, buried in a shallow grave.

Gless suppressed evidence in the case, citing police mistakes that included pushing Peterson into making involuntary statements.

On Tuesday, an assistant attorney general argued to a Nebraska Court of Appeals judge that the evidence should not be suppressed.