Zhang Yuesheng, a police officer from Chuanghui Road Police Station, Gaoxin Sub-bureau of Xi'an Public Security Bureau, is also a probationary Communist Party of China (CPC) member. He has been working with dedication on the frontline for five years. He has solved nearly 100 criminal cases and safeguarded people's lives and property. Moreover, during the COVID-19 epidemic, he worked in the critical field of prevention and control of the outbreak in Xi'an, practicing the responsibility and commitment of a CPC member with his actions.