Here is more information about DNA tests
From the CIC manual http://www.cic.gc.ca/englisH/resources/manuals/op/op01-eng.pdf
In this manual from Section
13 Procedure: DNA tests
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13.1 Information for applicants
Visa offices should inform applicants of the following:
the decision to be tested or not is entirely their own;
they or their sponsor must pay all costs, including sample taking, courier costs for
shipping, the laboratory analysis of all samples, and the final report submitted
directly from the laboratory to IRCC and the applicant;
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In this manual from Section
14 Procedure: DNA testing
======================
The following steps must be followed when samples for DNA testing are taken:
Provide clients with the link to the Standards Council of Canada website that
provides names and addresses of laboratories accredited for DNA relationship
testing. Applicants, their sponsors or representatives are responsible for choosing a
laboratory.
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Finally a sample letter
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Appendix D Sample letter requesting a DNA test (to be adapted
to your needs)
[Date]
[File number]
[Name and address]
Dear [applicant]:
This refers to your application for permanent residence in Canada.
Include the following paragraph if no documentary evidence is submitted in
support of the application.
After reviewing the information provided in support of your application, I am not satisfied
that there is sufficient evidence to prove the parent-child relationship between you and
[NAME OF CHILD].
Include the following paragraph if some documentary evidence is submitted but is
not satisfactory. Add brief reasons for suggesting a DNA test as well. Sample
reasons are listed below.
After reviewing the information provided in support of your application, I am not satisfied
that there is sufficient evidence to prove the parent-child relationship between you and
[NAME OF CHILD].
The birth certificate you provided was issued after you submitted your application for
permanent residence.
The birth certificate you provided was sent for verification to the (name of the
authorities). [Name of the authorities] have confirmed that the certificate was never
issued by them.
Since the documentary evidence you have provided does not enable us to establish
parentage between you and the child, and you are unable to obtain other documentary
evidence, in place of documentary evidence we will accept the results of a DNA analysis
carried out by a laboratory accredited by the Standards Council of Canada for DNA testing.
You are responsible for the selection of such an accredited laboratory in Canada and for the
costs associated with sample taking, shipping, laboratory analysis and report submission.
Please refer to the list of laboratories accredited by the Standards Council of Canada to
conduct DNA testing.
Once you decide to undergo DNA testing, the chosen laboratory will send us a letter
informing us that you are prepared to undertake testing. Upon receipt of this letter, we will
OP 1 Procedures
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then contact you with a date for sample collection at an [APPROVED COLLECTION SITE]. We
will also inform you of the requirements for a valid passport, an identification card, two
passport-size photos, and the fees for the sample collection procedure and courier services
to send each sample to Canada. Please note that it is important for you to have on hand the
necessary identification documents so that we may proceed with the sample collection.
The results of the DNA tests will be sent to us by the laboratory when analysis has been
completed. This can take approximately four to six weeks.
If the tests confirm the relationship between you and [NAME OF CHILD], we will be in a
position to proceed with the processing of your application or issue new medical instructions
if your medical results have expired by that time.
DNA tests are not mandatory.
If we are not advised within 90 days by a laboratory that you will undergo DNA testing, we
will assume that you are no longer interested in providing a DNA test result and will render
a decision based on the information available to us at that time.
Sincerely,
[VISA OFFICER]
A list of accredited laboratories can be found on the Standards Council of Canada website.
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So from this CIC manual, my understanding is that, CIC should inform the client (in this case You) about the test and all other information with the letter as shown above. I don't think it is something you can just go by your self and do the DNA test
And also without information from CIC, how you would know, which person should go for DNA test, e.g. you and your mother or Your sibling(which sibling) and your mother should go for test.?
Also here is link for DNA test labs in case you need to call DNA labs to confirm if they can do the test with CIC letter ?
=province%3AOntario]https://www.scc.ca/en/search/palcan/dna?f[0]=province%3AOntario]https://www.scc.ca/en/search/palcan/dna?f[0]=province%3AOntario]https://www.scc.ca/en/search/palcan/dna?f[0]=province%3AOntario
You can select the Province from right side for Lab address for your province