-LRB- CNN -RRB- -- Evidence consistent with human decomposition was found in the trunk of a car belonging to a Florida woman charged with killing her 3-year-old daughter , according to a forensic report released Friday . Caylee Anthony , 3 , disappeared in mid-June but was n't reported missing until a month later . `` Both odor analysis and LIBS results appear to be quite consistent with a decompositional event having occurred in the trunk of the vehicle , '' said the report from Tennessee 's Oak Ridge National Laboratory , noting that the results were preliminary . Testing indicates that the decomposition could be human , the report adds . Casey Anthony , who drove the car , was arrested this month and charged with first-degree murder and other charges in the disappearance of her daughter , Caylee . Caylee was last seen in mid-June , but Casey Anthony waited about a month before telling her family the child was gone . LIBS is laser-induced breakdown spectroscopy , one of the techniques used in chemical analysis . Testing was conducted on air and carpet samples from the vehicle . The tests indicated `` the presence of the five key major compounds associated with human decomposition , '' the report said . The tests also found `` an unusually large concentration of chloroform '' in the trunk , according to the Oak Ridge report . Chloroform can be used to render someone unconscious . However , trace amounts of chloroform were also found on a control carpet sample , the report said . Watch Nancy Grace report on the chloroform discovery '' The report also says evidence of possible decomposition was found on a hair located among debris in the trunk . The hair is `` microscopically similar '' to one recovered from Caylee 's hair brush , the report said , but `` a more meaningful conclusion can not be reached as this is not a suitable known hair sample . '' The report was released by prosecutors as part of the case 's public record . Prosecutors said they would not comment further on them . Todd Black , a spokesman for Casey Anthony 's attorney , Jose Baez , said the evidence does not link Casey Anthony to any criminal behavior . `` There 's nothing in those reports that links Casey Anthony to any wrongdoing with her daughter , Caylee , '' he said . Casey Anthony was arrested October 14 in a traffic stop after a grand jury indicted her on seven counts of first-degree murder , aggravated child abuse , aggravated manslaughter of a child and four counts of providing false information to police . If convicted of the capital murder charge , she could face the death penalty or a life sentence . Police and prosecutors have said little about the case , but hundreds of pages of documents and investigative reports have been released . They indicate that Casey Anthony went to nightclubs , entered `` hot body '' contests and text-messaged her friends while her daughter was missing . Copies of cell phone and text records released to the public show that she hardly ever mentioned Caylee during the time just before and after the girl was reported missing . And in May , just before Caylee disappeared , her mother referred to the girl as `` the little snot head . '' Casey 's mother , Cindy Anthony , called the sheriff in Orange County , Florida , on July 15 , saying her daughter would n't tell her where Caylee was . Casey 's brother , Lee Anthony , also pleaded with his sister to tell him where Caylee was , according to police documents . She told him she had n't seen the child in `` 31 days . '' When questioned , Casey Anthony gave conflicting statements to police , including some that were later disproved , accounting for the charges of providing false information . She claimed that she dropped Caylee off with a baby-sitter , but when police checked out her story , they learned that the address Casey Anthony supplied belonged to an apartment that had been vacant for weeks . The woman Casey Anthony named as her baby-sitter told police she did not know her . Investigators have said cadaver dogs picked up the scent of death in Casey Anthony 's car and her parents ' backyard . A neighbor told police Casey Anthony had asked to borrow a shovel . Preliminary air quality tests conducted by the FBI found evidence consistent with human decomposition and chloroform in the trunk of Casey Anthony 's car , investigators previously said . Further analysis of Casey Anthony 's computer found that she had visited Web sites discussing chloroform , as well as Internet searches of missing children . CNN Headline News ' Natisha Lance contributed to this report .