Dear Immigration Department,

Dear Immigration Department,

Please can you confirm the following, for each 12 month period from 2017 to 2019, inclusively (the 'Relevant Period') ; as follows:

(i). The no. of individuals detained under immigration powers during the relevant period;

(ii). The average duration of the periods individuals were held within immigration detention, (i.e. in days), during the relevant period;

(iii). The longest single period of continuous immigration detention;

(iv) The no. of those individuals as at (i)., who prior to their detention had made claims within the USM; (and of those, the no. of those individuals whose claims were ongoing during that period);

(v) The no. of those individuals as at (ii), who during the period of their detention, lodged/submitted claims within the USM.

Yours faithfully,

Isaac Shaffer

Immigration Department

Our ref. : ImmD RM/6-5/10/2020/112 (R)


Dear Mr Shaffer,


Our department received your application for access to information on 6
March 2020. We hereby provide you the following information.


Item (i)


The available detention statistics are as follows:


Year 2017 Year 2018 Year 2019
10,948 11,510 10,053


The above statistics of Year 2017 and 2018 are available at



Item (ii)-(iii)


The Immigration Department does not maintain statistics on the duration of
the periods in which individuals were held under immigration detention.


Item (iv)-(v)

The Immigration Department does not maintain statistics on the status of
the detention concerned in relation to the lodging of claims.


I hope you will find the above information of use.





SUM Henry Ka-Hing

for Director of Immigration

To learn more about the application requirements and procedures of the
most frequently used services provided by the Hong Kong Immigration
Department, you are welcome to visit the Easy Access Playlist at Hong Kong
Immigration Department [2]YouTube Channel. The concerned video clips have
Cantonese voice-over supplemented by Chinese or English subtitles.

show quoted sections

Dear Immigration Department,

Please pass this on to the person who conducts Freedom of Information reviews.

I am writing to request an internal review of Immigration Department's handling of my FOI request 'Immigration Detention'.

I have been informed that no data is retained in response to areas of my request.

These omissions relate to significant issues for which data ought reasonably to be either obtainable , or otherwise be recorded.

This data has been previously requested (in similar prior requests) and its absence previously complained about. It is evidently of public interest as it relates to the protection of basic constitutional rights, and significant public expenditure.

A full history of my FOI request and all correspondence is available on the Internet at this address:

Yours faithfully,

Isaac Shaffer