A Mexican court may rule as early as tomorrow on the validity of the the arrests of Duane "Dog" Chapman, son Leland Chapman and associate Tim Chapman in Mexico after they caught cosmetics heir Andrew Luster, Duane Chapman's spokeswoman said yesterday.

If the Mexican court throws out the arrests, Duane Chapman and the two others would not have to return to Mexico and the federal extradition proceedings against the three would be dropped, spokeswoman Mona Woods said.

The Federal District Court in Guadalajara, Mexico, heard two days of hearings.

The defendants were charged by Mexican authorities with illegal detention after they caught Luster in 2003, who was wanted in California on charges of drugging and raping three women.