SLAVE LABOUR - Persons, especially a large group, performing labor under duress or threats, as prisoners in a concentration camp; a labor force of slaves or slavelike prisoners. - Work that is done by slaves or by people who are treated like slaves - Slave labour is all work or service which is exacted from any person under the threat of a penalty and for which the person has not offered himself or herself voluntarily. Forced labor can include forced sexual services. Source: https://www.google.com.ec/searchq=slave+labor&safe=strict&rlz=1C5CHFA_enEC811EC811&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjV852Hsp3eAhUho1kKHZDvA2YQ_AUIDigB&biw=1162&bih=619#imgrc=8pT7OreuEQOuAM: