On the basis of the definition given in the Trafficking in Persons Protocol, it is evident that trafficking in persons has three constituent elements;
The Act (What is done): Recruitment, transportation, transfer, harbouring or receipt of persons
The Means (How it is done): Threat or use of force, coercion, abduction, fraud, deception, abuse of power or vulnerability, or giving payments or benefits to a person in control of the victim
The Purpose (Why it is done): For the purpose of exploitation, which includes exploiting the prostitution of others, sexual exploitation, forced labour, slavery or similar practices and the removal of organs.
To ascertain whether a particular circumstance constitutes trafficking in persons, consider the definition of trafficking in the Trafficking in Persons Protocol and the constituent elements of the offense, as defined by relevant domestic legislation in your jurisdiction.