The Ohio case involving 16 children found living in alleged deplorable conditions is entering a crucial legal stage, and the newest developments could dramatically change what happens next.

At the center of the latest development is Elizabeth Siders, the children’s mother.

On August 4, her attorney asked a Vinton County judge to order a competency evaluation. The attorney said repeated meetings with Siders had raised concerns about significant mental-health issues.

But the defense request did not stop there.

If Elizabeth is found competent to stand trial, her attorney also asked for an evaluation addressing whether she may have been legally insane at the time of the alleged offenses.

On August 10, the judge granted the request.

That decision makes Elizabeth the latest of the four defendants to enter the competency-evaluation process.

The distinction between competency and insanity could become one of the most important aspects of the case.

Competency concerns a defendant’s condition now.

The question is whether the defendant understands the proceedings and can work with an attorney to defend against the charges.

An insanity defense is focused on the past.

It asks whether the defendant’s mental condition at the time of the alleged conduct met the legal requirements for being found not guilty by reason of insanity.

At this point, there is no court finding that Elizabeth Siders was legally insane.

There is also no public determination that she suffers from a specific mental illness.

The evaluations have been requested and ordered precisely because those questions remain unresolved.

The dramatic courtroom development follows the June 30 discovery that brought the Siders family into the national spotlight.

Authorities say 16 children were found at a Hamden residence.

The children reportedly ranged in age from 18 months to 18 years.

Investigators alleged that the children were living in severely unsanitary conditions and were largely confined to a room measuring roughly 12 feet by 12 feet.

Authorities said the room was contaminated with human feces.

Some of the children reportedly needed medical attention after being removed.

The discovery itself was reportedly unexpected.

Officers had gone to the residence while pursuing an unrelated investigation involving Gary Siders Jr.

Instead, they encountered the children and conditions that prompted a much broader investigation.

Gary Siders Jr., Elizabeth Siders, Gary Siders Sr. and Christina Siders were subsequently charged with 16 counts each of felony child endangerment.

All four have pleaded not guilty.

The case is still developing, and the charges could potentially change as prosecutors present evidence to a grand jury.

The mental-health issue is not entirely new.

Gary Siders Jr. previously sought a competency evaluation, and similar competency proceedings have involved his parents, Gary Siders Sr. and Christina Siders.

That means the entire group of adult defendants is now connected to competency-related proceedings.

The situation involving Gary Siders Sr. has also changed.

The 73-year-old grandfather was hospitalized during the case and later received permission to be released under conditions tied to a $300,000 bond. He is subject to GPS monitoring and other court requirements.

The children, meanwhile, remain under state supervision.

Authorities and child-welfare officials are dealing with the consequences of their removal, including medical and psychological care as well as educational needs.

The investigation has also raised questions about how the children could allegedly remain isolated from normal community systems for such a long period.

Those questions could become important as prosecutors attempt to establish the timeline and circumstances surrounding the alleged neglect.

For the defense, however, the central argument may increasingly focus on the adults themselves.

Was this a case of deliberate neglect?

Was poverty or social isolation a major factor?

Did mental-health problems play a role?

Or will prosecutors argue that the adults knowingly failed to provide adequate care regardless of their personal circumstances?

Those questions cannot be answered definitively until the evidence is presented.

For now, the court is taking a different step first: determining whether the defendants are psychologically capable of participating in their own defense.

Elizabeth’s evaluation could take center stage in the coming weeks.

If she is found competent, the insanity evaluation could become another major component of her defense.

If she is found incompetent, the criminal proceedings could be delayed while the court determines the appropriate next steps.

Either outcome could have a major impact on the case.

And while the public continues to search for answers about how 16 children ended up living in the conditions described by investigators, the courtroom is beginning to focus on a different mystery:

What was happening inside the minds of the adults responsible for them?

That question has not been answered.

But now, for the first time, the Ohio court has formally ordered professionals to begin looking for the answer.