Cover -- Title page -- Copyright page -- Acknowledgements -- Table of contents -- 1 Introduction -- 2 Main results -- 2.1 Results by form of forced labour -- 2.2 Results by sex and age group of victims of forced labour -- 2.3 Results by region -- 2.4 Results by migration of the victims -- 2.5 Can the 2012 and 2005 global estimates of forced labour be compared? -- 3 What is forced labour? -- 4 Estimation of reported forced labour -- 4.1 Choice of methodology -- 4.2 The basic statistical unit: a reported case of forced labour -- 4.3 Capture-recapture sampling -- 4.4 Capture-recapture probabilities -- 4.5 Stratification -- 5 Data collection, entry and validation -- 5.1 The data collection phase -- 5.2 The data entry and cleaning phase -- 5.3 Data validation and matching -- 5.4 Respect of the capture-recapture assumptions -- 6 Estimation of total stock of reported and unreported forced labour -- 6.1 Stock versus flow estimates of forced labour -- 6.2 Duration in forced labour -- 6.3 Proportion of reported forced labour -- 6.4 Breakdown by sex, age group and migration -- 7 Evaluation of the results -- 7.1 Margins of error -- 7.2 Concluding remarks -- Annex 1 Regional classification -- Annex 2 Data entry templates.