DNA testing and DNA samples

What is a witnessed sampling

You choose a neutral witness to attend your sampling

The taking of a mouth swab to do a paternity test must be documented by a neutral person (witness). This process is called “witnessed sampling.”


Who can be a witness

We as your DNA lab can attend your sampling. If you live to far away to come to our premises for this you can chose from this group to oversee  the sample collection and handling:

  • a doctor (e.g. your family doctor)
  • an employee from the youth welfare or health department (search for this below)
  • employee at a pharmacy (for this below)
  • a midwife or hospital staff
  • a notary


Relatives, friends or neighbours will not be considered as a neutral, unbiased witness for a DNA sampling.


Procedure of sampling


Witnessed Sampling

Together with your witness you now fill in all forms and sign everything accordingly. To make the sampling easy we have compiled a flyer (PDF) that explains all necessary steps.

Please note: for participants under age all persons having custoday must give their written consent.

After taking the samples the witness returns the swabs to their respective envelope and seals it. All sample envelopes and documents will now be placed in the return envelope which also need to be sealed.

We conduct your Witnessed Sampling

We may take your samples in our lab. Please contact us.

According to the German Gene Diagnostics Act scientists of your chosen DNA laboratory have to ensure to maintain the "chain of custody" - procedure during the sampling and the performing of the DNA analyses.

Therefore, you may of course make an appointment and visit our premises in Ebersberg near Munich to have a witnessed DNA sampling. 


Of course, many of our customers just don't live near enough. According to the law certain exceptions are granted in the "Richtlinien zum Gendiagnostikgesetz", Par. IV (Guidelines of Gene Diagnostics Act, German PDF).


Hence, you may also ask another independant person to oversee and verify the procedure of witnessed sampling. This can be:

  • your GP
  • an employee of the youth welfare center
  • a Public Health officer
  • a pharmacist
  • a midwife
  • hospital staff


How to find a sampler:


In case you should not want to make an appointment with your GP you can search here for a sampler  

How much does a sampling cost?


Witnessed sampling in our premises: 79 € / appointment.

Please call beforehand.


Other samplers: if you fix a date for a witnessed sampling with somebody other than us you should ask for their costs. They may invoice you as private patients.


Please note: The GP you chose to perform your witnessed sampling does not need to be specified in a certain medical discipline.

Whose samples are needed for a paternity test

For a paternity test we need the samples of the child and the alleged father.

A DNA analysis can be conducted with only the samples of the child and the alleged father (a so-called deficiency cases, our Paternity Test Basis).


The results will always be indisputable and accurate. But the inclusion of the mother in the test will strenghten the conclusion of the report and increase the statistical percentage of paternity.

Who needs to give consent to DNA Tests?

All participants need to give their written consent

In Germany, all DNA testing is regulated according to the Gene Diagnostic Act which came into effect in February 2010.


Since then it is mandatory that DNA tests must only be performed with the written and formal consent of each participant. No more clandestine tests may be done. Not only the testing laboratory may be liable for prosecution but also the customer who ordered the DNA test.


Accordingly, we are obliged to ensure that all participants have been sufficiently informed and have given their written and formal consent.


For a child under age the mother needs to consent. If she should refuse her consent your only chance is to obtain a court order that enforces her consent.

How do I send DNA samples for paternity testing

The DNA samples can be returned by normal post

In our test kit you will find everything you need for the shipment of the samples:
  • self adhesive sample envelopes
  • the complete documentation
  • an addressed and pre-paid return envelope


After the sampling, the samples of each participant should be packed into one of the sample envelopes. Please make sure that each envelope is labelled correctly. After filling out and signing all documentation please just put everything in the prepared return envelopes. They are already addressed and the postage is paid for the shipping within Germany

How long does DNA testing take?

We conduct your paternity test in 3- 4 working days

Before starting the analyses we need your samples, the complete documentation and consents of all participants.

A paternity test "Basis" will then be completed within 4 working days. The Test "Premium" will take only 3 days until completion.

We will subsequently send your test results.


Processing times for paternity tests with non-normalized samples


In certain cases, we may conduct your paternity test using samples other than saliva. For instance, in cases involving inheritance, you might provide us with biopsy material from the deceased.

In such situations, the processing time is significantly influenced by the quality of the samples.

We have the capability to process and analyze a wide range of materials, including detecting and amplifying small traces of DNA through PCR. This ensures that the material is adequate for a paternity test.
However, the duration for completing the DNA test may vary based on the complexity of the process. We would certainly engage in a discussion with you regarding any potential extended timelines.

How will I receive my DNA test results?

The DNA report will be send by post and by email

You will receive the test results as a download link. A full officially signed report will be send to you by postal mail additionally

In this report we will explain what we did in the analysis and what results could be drawn from your DNA.


For example, the results for a paternity analysis will give a 100% probability if the alleged father is excluded as the biological father.

It means he cannot be the father of the tested child because the analysis clearly shows that there is no paternal line between the alleged father and the child


If the alleged father is not excluded to be the biological father the statistical probability will be 99,99% or higher. The man is considered to be the biological father.


Every DNA report is written by experienced scientists. 

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