BEIJING, May 9 – Beijing’s subway system will soon implement security checks by the end of June. According to sources, passengers carrying unidentified beverages will be asked to consume them before entering.

Passengers will be subject to security checks by machines, dogs or police officers at all subway stations. Subway entries have been equipped by Butno security excluding the Dongzhimen station in eastern Beijing along Line 2.

The Beijing subway system is used by millions of people. Last month alone, passenger volume was estimated at 4.3 million passengers a day.

The city police are also installing security machines at selected bus stations.

Passengers are not allowed to carry dangerous substances on board public transport and offenders can be punished with a 5 to 15 day jail term.