IOWA CITY (AP) — A judge has ordered a survey of potential jurors to determine whether pretrial publicity has made them too biased to hear the drug and assault trials pending against the father of one of two missing Iowa cousins.

In a ruling released Tuesday, Judge Margaret Lingreen said that she has not yet found enough prejudice to justify moving the prosecution of Daniel Morrissey on methamphetamine and domestic abuse charges out of Black Hawk County. But she said she was unable to assess the impact some of the publicity about Morrissey's past had on local residents and that the survey results would help determine whether to grant his request to move the venue out of the Waterloo area.

Morrissey is the father of 10-year-old Lyric Cook, who disappeared with her 9-year-old cousin, Elizabeth Collins, while riding bikes on July 13 in the Waterloo suburb of Evansdale. The girls have not been found despite an extensive manhunt by local, state and federal investigators who are treating it as an abduction case.