How is Mrs. Earle's story about LeCederick's arrest different from her son's?

Mrs. Earle tells Elvis that Officer Rossi did not do anything wrong. According to Mrs. Earle, Rossi never went back to LeCederick's room and that she and Mrs. Earle were talking the entire time LeCederick was in his room. Mrs. Earle found Officer Rossi to be polite. Mrs. Earle does not say nice things about her son to Elvis. She claims that LeCederick is a liar and that she does not trust him.