Ex-police dog reunion with his trainer.

Former police dog Wangwang meets his former trainer for the first time after retiring and being adopted by a family.
The move meant that Wangwang and his coach were separated after years of working together.
The policeman decided to pay a surprise visit to his furry friend while patrolling a neighborhood near his home.
When Wangwang was called out of his house, he clearly noticed who was calling him, got excited and ran out the door and launched himself into his arms.