The problem is

LZ truly had something in her bag that she bought previously. BTW, I will not trust any person that I do not known as 君子. Even the friends I know long time can hurt me, let alone other unknown people.我们国人 need to learn is being professional,being nice to others being to us, and when bad things happen stand up and protect ourself. The people working there may not even have a high school certificate. If that person had any evidence against LZ, do you LZ can walk away free? Any way that is my suggestion. Any way just my thoughts. BTW, i guess you should use 君子之心 toward LZ