Section 1: Immigration detention numbers and demographics – Reasons of detention

Why were people detained? There are several ways to answer this question. From the perspective of official government data, what we were able to collect is the end of month detainee population at Castle Peak Bay Immigration Centre and Ma Tau Kok Detention Centre, broken down by the sections of the Immigration Ordinance (Cap. 115) or Immigration Service Ordinance (Cap. 331) they were held under.

In other words, the charts show the detainee population at CIC and MTKDC at a snapshot in time, and what broad categories and sections of the immigration laws they were held under.

If you intend to use the data, please read the notes for accuracy.

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Why are people held at CIC and MTKDC?

Grouped sections (CIC and MTKDC)

These data points represent the detainee population at CIC and MTK on a given day and the sections of the Immigration Ordinance (IO) that the people on that day were detained under. This dataset features the last day of each month in a three-year period.

Why are people held at CIC?

Grouped sections

These data points represent the detainee population at CIC on a given day and the sections of the Immigration Ordinance (IO) that the people on that day were detained under. This dataset features the last day of each month in a three-year period.

Why are people held at CIC?

Specific sections

These data points represent the detainee population at CIC on a given day and the specific sections of the Immigration Ordinance (IO) that the people on that day were detained under. This dataset features the last day of each month in a three-year period.

Why are people held at MTKDC?

Grouped sections

These data points represent the detainee population at MTKDC on a given day and the sections of the Immigration Ordinance (IO) that the people on that day were detained under. This dataset features the last day of each month in a three-year period.

Why are people held at MTKDC?

Specific sections

These data points represent the detainee population at MTKDC on a given day and the specific sections of the Immigration Ordinance (IO) that the people on that day were detained under. This dataset features the last day of each month in a three-year period.

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