ORLANDO, Fla. -- Casey Anthony, the mother of missing 3-year-old Caylee, is seeking freedom from her home confinement restraints so she can have the ability to travel and search for her daughter, according to newly released court documents.

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READ: Documents 10-8-08
READ: Documents II 10-8-08
READ: Documents III 10-8-08
READ: Documents IV 10-8-08
IMAGES: Clash With Protesters
IMAGES: Casey Released Again
IMAGES: Casey Arrested (Sept. 15)
IMAGES: Costumed Protesters Parade At Home
IMAGES: Fights Erupt Outside Anthony Home
EXCLUSIVE IMAGES: CSI Checks Casey's Car
IMAGES: Missing Caylee Anthony Photos
IMAGES: Photos Of Casey Anthony Surface

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A judge on Friday will consider the motion, along with several others at a court hearing.

It is not known where Anthony, 22, wants to travel in the search for Caylee, who was last seen in mid-June but wasn't reported missing until mid-July. Anthony's family recently said that a baby sitter may have taken Caylee to Puerto Rico.

Anthony's attorney, Jose Baez, filed several other legal motions, including having access to his client's car so experts can photograph and test it.

Anthony's defense team also wants law enforcement to hand over all forensic evidence regardless of whether prosecutors will use it in his client's child neglect case. The evidence includes the chloroform allegedly found in Anthony's car and hair and DNA discovered in the trunk.

Baez is also requesting all of the evidence from his client's computer and cell phone records. Prosecutors have released some of that information to the defense.

He also wants to know whether any of Anthony's friends or family members have undergone lie detector tests. If they have, Baez is seeking access to the polygraph equipment.

Baez also wants Orange County sheriff's detectives to hand over all information about any women named Zenaida Gonzalez whom they have investigated. That's the name of the baby sitter Anthony told detectives she left Caylee with at an Orange County apartment complex in June.

A woman with that name -- who has a tie to the apartment complex -- is suing Anthony for defamation.

Anthony's attorneys also want to see an AirTran manifest for an Orlando-to-Atlanta flight from early July. Detectives investigated the flight after receiving reports of a possible Caylee sighting at Orlando International Airport. Orange County sheriff's deputies said none of the children on the flight were Caylee.

Investigator: Casey 'One Of Toughest'

Meanwhile, a veteran investigator described Anthony as one of the toughest individuals he's ever run into, according to Orange County Sheriff Kevin Beary.

Anthony, who is the only person named as a suspect in her daughter's disappearance, has provided what investigators have called "deceptive responses" in connection with the case.

In an exclusive interview with Local 6, Beary said lead detective Sgt. John Allen has described Anthony's attitude.

"I've had some very experienced people working on this case and Sgt. John Allen is one of those," Orange County Sheriff Kevin Beary said. "Sgt. Allen said that's one of the toughest individuals he's ever come in contact with when it comes to attitude and as you called the poker face."

"In your heart, do you believe (Caylee) is gone -- she is dead?" Local 6's Mike Holfeld said.

"Well, my dad-instinct says you never want to give up," Beary said. "But the way the evidence is looking, that's probably what's going to be down the road."

"She's gone?" Holfeld said.

"She's gone," Beary said. "Every day that passes, everything in your gut instinct tells you we're not going to find that child -- at least not alive. You know, we know that something's wrong. We know something happened and that's why we are still building the evidential case for the future."

Beary said the evidence could play a role in a criminal court showdown with Casey Anthony, Holfeld reported.

"Well, Florida has laws on the books like that," Beary said. "I think before anybody does anything, the state attorney, the sheriff's office, the Florida Department of Law Enforcement and the FBI will make sure that if that is the scenario, we will have all our ducks in a row for a good solid case."

Beary said that additional evidence is coming, but he has asked investigators not to brief him until they are ready to release it.

The sheriff also said that he is hopeful that the case will come to a close before he leaves office in less than three months.

A national search continues for missing Caylee Anthony.

Watch Local 6 News for more on this story.