The rules would bar new evidence of a disability or evidence of new disabilities in the appeal process.

As a rule of thumb, natural or unnatural facts provide presumptively reliable good or bad values, barring evidence to the contrary.

Yet the defense is likely to face two hurdles that could bar psychiatric evidence during the penalty phase.

That decision barred emotionally charged evidence about the impact of a murder on a victim's family from death-sentencing hearings.

They would bar new evidence of a disability or evidence of new disabilities during the appeals process.

The White House agreed to abide by the rules of courts-martial, which bar secret evidence.

They wanted to bar evidence obtained through coercion.

Some opponents of capital punishment were heartened by a Supreme Court decision that bars certain evidence at death sentence hearings.

The prosecution has sought to bar such evidence.

To bar evidence of his illness, they say, would be to deprive him of his constitutional right to present evidence in his own defense.