|Japanese name||Rou Shiryuu|
Shi-Long Lang is an elite Interpol agent from the Republic of Zheng Fa who appears in Ace Attorney Investigations: Miles Edgeworth. He claims to have the highest rate of catching criminals and is currently investigating a large scale smuggling operation. Lang is highly respected amongst those working under him and is often accompanied by his assistant Shih-na. He also has a hatred of prosecutors and states many times he doesn't trust Miles Edgeworth. He is known to be very involved in his work, and has a massive team of subordinates to help in a investigation.