SIMPSON TEAM GREEN-LIGHTED TO CHALLENGE DNA TESTING.(MAIN)

Byline: LINDA DEUTSCH Associated Press

LOS ANGELES In a victory for O.J. Simpson, the judge at his murder trial cleared the way Tuesday for a wide-ranging defense attack on DNA testing procedures at the police crime lab.

Prosecutors, who have presented DNA evidence linking Simpson to the murders of his ex-wife and her friend, objected to the new phase of defense testimony, saying it could mislead jurors and would unnecessarily prolong the trial.

``This is the heart of our defense,'' attorney Barry Scheck argued. ``The key defense contention regarding DNA is that because of substandard practices in this county, key evidence was …