Smuggling is the illegal transporting of goods. These goods can be legal, such as alcohol and tobacco, or illegal, such as drugs and arms. Illegal trafficking of immigrants is also a form of smuggling.

Human trafficking: is the recruitment, transportation, transfer, harbouring or receipt of people through force, fraud or deception, with the aim of exploiting them for profit. Men, women and children of all ages and from all backgrounds can become victims of this crime, which occurs in every region of the world.

Many victims of human trafficking are used to ferry drugs across international borders. Popularly known as 'drug mules', the victims are made to swallow balloons containing illicit drugs and are then transported across borders.  Once they have reached their destination, these balloons are retrieved from the victim's body.

Questions about smuggling: https://reliefweb.int/report/world/questions-and-answers-smuggling-and-trafficking-human-beings