ORLANDO, Fla. -- Newly released surveillance videos show the mother of missing Caylee Anthony shopping at different Central Florida stores using stolen checks, according to investigators.

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NEW IMAGES: Surveillance Photos Of Casey Anthony
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Authorities said the video and photos prove Casey Anthony is a thief, Local 6 reported.

Investigators said Casey Anthony used stolen checks from her one-time best friend Amy Huizenga, and then spent the money in stores including Target.

Copies of checks Anthony allegedly wrote were also released Wednesday, including one check on which Anthony apparently signed her own name.

When Casey Anthony was initially arrested on charges of child neglect, she was videotaped wearing a blue hoodie with the number 82 on it.

On surveillance video, Anthony can be seen buying the same blue-hoodie outfit at a Target store located on Alafaya Trail. Investigators said she made the purchase using a stolen check.

According to sheriff's deputies, Anthony stole Huizenga's checkbook while she was out of the country on vacation and then illegally went to at least four stores.

Prosecutors said Anthony stole more than $1,300 from Huizenga.

Anthony apparently made grocery and clothing purchases during a time in mid-July -- after Caylee had been missing for more than a month and when she was living with her boyfriend.

In addition to using Huizenga's checks to buy items, prosecutors said Anthony also cashed a check at a Bank of America where surveillance cameras captured her at a teller window.

Anthony allegedly wrote a check to herself for $250, Local 6 reported. Prosecutors said Anthony forged Huizenga's signature on the bottom of a check.

Also, on one of the checks Anthony allegedly spent in a Central Florida Target store, she signed "Casey Anthony" on the bottom of Huizenga's check, Local 6 reported.

In addition to five paper checks, detectives said Anthony wrote an electronic check to AT&T for $574.

If Anthony is convicted of all 13 check fraud charges, she could be sentenced up to 65 years in prison, Local 6 reported.

New Motion Filed

Meanwhile, Anthony's attorney, Jose Baez, filed a new motion wanting evidence that may be favorable to his client.

The motion requests a list of any promises the state has made to any witnesses and any fees witnesses may be paid.

It also requests any information investigators have discovered that could be used to Anthony's disadvantage.

There have been several reported sightings of missing 3-year-old Caylee.

Baez has requested reports from any law enforcement agency that has investigated the tops.

A national search for Caylee continues.

Watch Local 6 News for more on this story.