Tianjin subway line 2 security check why each touch pocket

Assurance of safety. The subway belongs to the big cities widely used transportation, normal are in 10 to 30 meters underground, so that can effectively relieve the pressure of ground transportation, and convenient. Because of its specificity, the security check of passengers is also very strict, in addition to the regular check, carry-on about luggage, including handbags also do not let go is afraid of unclean molecules will be prohibited goods on the subway, Tianjin Metro Line 2 security check each touch pocket is for the safety of each passenger.