Why do people lie under Oath and are able to get away with it?

My daughter, who's hasn't received her unemployment in months. Her employer let her go because of her credit history. However, the employer stated, " I let her go because she came to me and stated she was quitting because she found another job." My daughter filed an appeal to the TWC deputing that she didn't quit her job. First, the employer said, "Your sister called in for you saying you were in the hospital." That was the first lie. My youngest daughter is in the Army, has been in the Army since February 3, 2009. She went to South Carolina for her basic, from February 3, 2009 until April 17, 2009. At the time when my youngest left for (basic) Army, she nor I knew where my oldest daughter and my grand-kids where abouts were. My oldest daughter, left the city where she resided with my youngest daughter and me (I'm her mom). We hadn't heard from my oldest for about two years. The employer stated, "My Human Resource Support Representative called back the telephone number that was supposely left by my youngest daughter." My daughtest provided a signed letter, and copies showing that her sister, who is currently serving Our country, didn't call in for her. While in basic, for you to make any calls was a privelged. Secondly, the HR representative for the Director of Human Resources, reported that my oldest daughter call in to say she wasn't coming into work. This all took place after April 10, 2009. Now April 10, 2009, is very important date, because this is when the Director of Human Resources said, "I'm going to have to let you go because of your credit history". Althought, the Director of Human Resources denied saying this to my oldest daughter. By, the first Appeal Hearing from TWC ( Over the phone, swearing in, under oath to tell the truth), the questions that was asked from the Appeal Officier, "Oldest daughter can you prove to me that you were indeed fired because of your credit history?" Appeal Officer said, "Can you provide a doent wth the Company name, that says, this employer did indeed check your credit? My oldest daughter replied, yes. I received an Employee Handbook that reference, checking my credit history. But, the Director of Human Resources, stated, "That's not true." So, here they are at the third Appeal Hearing over the phone again, and sure enough, my oldest daughter privided, The Pre-Employment Inquiry Release, where she signed and date on April 6, 2009 during the orientation cl. And most importantly, the Director of Human Resources sent a packet to the Appeal Officer, my oldest daughter, and her Lawyer, copies of the Employees Handbook, the Pre-Employment Inquiry Release form, to include her application, and e-mails that were dated after April 10, 2009. These e-mails, range from April 14-19, 2009. Well after April 10, 2009. My oldest daughter provided, witnesses, and the Director of Human Resources provided everything else. In conclusions, witnesses, signed letter and attached Army doentation from her youngest sister, and the packet sented by the Director of Human Resources showing that they do indeed check your check. And, the Director of Human Resources sent a letter that was included in the packet saying, Final Worked Day, was April 10, 2009. The Director of Human Resources signed and dated this doent. At the first Appeal Hearing, the Appeal Officer asked several questions to the Director of Human Resources, and most all questions were answer, I don't know, or I'm not sure. Their were questions directed at the Human Resource Support Representative, and she couldn't answer most of the questions. So, how can anyone in their right sane mind, make a decison, that the employer was right. Right about what, lies. As, I believe this was an unconscious biases decision by the Appeal Officer.