What does it mean to be declared incompetent to stand trial?

Maryland mom found incompetent to stand trial, charges dismissed in death of her children

Byron Frazier incompetent to stand trial

How is a defendant deemed 'incompetent' to stand trail?

Woman who murdered sister found incompetent to stand trial

Session Update: Defining Procedure When Defendants Deemed Incompetent to Stand Trial

Teen deemed incompetent to stand trial

Hundreds of inmates are incompetent to stand trial

An Alternative Approach: Treating the Incompetent to Stand Trial

Major Davis incompetent to stand trial

Man charged in deputy's death is mentally incompetent to stand trial

Judge deems murder suspect mentally incompetent to stand trial

Rupert O'Neil Harty declared mentally incompetent to stand trial

Man charged with killing mother found mentally incompetent to stand trial

Judge to decide if Cane Madden is incompetent to stand trial

Beshear signs bill closing loophole for incompetent defendants

Lost behind bars: Woman ruled incompetent for trial spends months at Polk County Jail

Robert Dear once again deemed incompetent to stand trial

Terror suspect found incompetent to stand trial

Judge again finds man accused in teen’s death incompetent to stand trial