Choosing to take a DNA test is a significant life decision. Whether you are looking for clarity regarding a newborn, navigating an immigration application, or resolving a family dispute, the results carry weight. However, at Brashan DNA Services, we often see clients who have been misled by "budget" options or have misunderstood the legal requirements of a paternity test uk.
Mistakes in DNA testing lead to more than just lost money; they lead to lost time, increased stress, and potentially legally inadmissible results. As CEO Erada Oguntoye often emphasizes, accuracy and discretion are non-negotiable in this industry. To help you navigate this process smoothly, we have outlined the seven most common mistakes people make when ordering a DNA test in the UK and exactly how to fix them.
1. Using an "At Home" Kit for Legal Purposes
The biggest mistake is assuming a standard at home paternity kit is sufficient for court or government use. While these are perfect for a peace of mind dna test, they do not follow the strict "chain of custody" required by law.
Why does the court reject home kits?
For a result to be legally binding, a neutral third party must verify the identity of the people being tested. If you take the sample yourself at home, the court has no proof that the DNA actually belongs to the person named on the form.
The Fix: Order a Legal Paternity Test
If you need results for the Child Maintenance Service, family court, or the Home Office, you must order a legal paternity test uk. This process involves an accredited sampler (usually a nurse or doctor) who checks IDs and handles the swabs directly. At Brashan DNA Services, we ensure your samples are processed in a UK-accredited lab to meet all ISO 17025 standards.

2. Testing Without Proper Legal Consent
In the UK, the Human Tissue Act 2004 makes it a criminal offense to test someone’s DNA without their explicit permission. You cannot simply "borrow" a toothbrush or a hairbrush from an adult to run a test behind their back.
How does consent work for children?
If the child is under 16, a person with parental responsibility must provide signed consent. If you do not have parental responsibility (for example, if you are not on the birth certificate and were never married to the mother), you may need legal guidance before proceeding.
The Fix: Follow the Rules
Never attempt "discreet" testing using non-standard samples without professional advice. It is illegal and the results will be useless in any formal setting. Always ensure all parties (or those with parental responsibility) sign the consent forms provided in our kits. Transparency is the only way to "erase doubt" effectively.
3. Prioritising Price Over Lab Accreditation
It is tempting to go for the £79 "quick results" kits you see advertised online. However, many of these companies act only as middlemen, sending your sensitive genetic data to unaccredited labs abroad.
What are the risks of cheap tests?
- Incorrect Results: Lower-quality labs may not test enough genetic markers, leading to an "inconclusive" result.
- Data Privacy Issues: Your data may not be protected under UK GDPR regulations.
- Hidden Costs: Often, the "cheap" price doesn't include the lab fee or the shipping.
The Fix: Check the Accreditation
Only use dna testing services that use Ministry of Justice approved laboratories. At Brashan, we pride ourselves on using top-tier facilities that offer same-day results without compromising on accuracy. Check our products page to see our transparent pricing.
4. Believing You Must Wait Until the Baby is Born
Many people believe that they have to wait nine months to find out the truth. This delay often causes unnecessary anxiety for expectant parents.
How does prenatal DNA testing work?
A non invasive prenatal paternity test (NIPP) can be performed as early as the 7th or 8th week of pregnancy. This test uses a simple blood sample from the mother and a cheek swab from the alleged father. Because the mother’s blood contains fragments of the baby’s DNA (cell-free DNA), the lab can map the baby's profile and compare it to the father's.
The Fix: Opt for a Prenatal DNA Test
If you need answers early, a prenatal dna test is the safest and most efficient route. It is non-invasive, meaning there is zero risk of miscarriage, unlike older methods like amniocentesis. You can learn more about this on our frequently asked questions page.

5. Overlooking Indirect Relationship Testing
Sometimes, the alleged father is unavailable for testing. He may be deceased, out of the country, or unwilling to participate. Many people assume this is the end of the road.
What are the alternatives?
DNA is inherited through families, meaning you can often establish paternity through other relatives.
- Sibling DNA Test: Comparing two people to see if they share one or both parents.
- Grandparent DNA Test: Using the paternal grandparents to confirm a biological link to the child.
- Aunt/Uncle Testing: Establishing a link through the father’s siblings.
The Fix: Use Extended Family Testing
If the father isn't available, don't give up. Explore our grandparent dna testing or sibling dna testing options. These tests are highly accurate and can provide the peace of mind you need.
6. Thinking the Mother’s Sample is Unnecessary
While it is possible to perform a paternity test without the mother (a "duo" test), providing the mother's sample (a "trio" test) is always recommended where possible.
Why should the mother participate?
The lab already knows which half of the child's DNA came from the mother. By "masking" the maternal DNA, the scientists can focus exclusively on the paternal markers. This significantly increases the statistical certainty of the result.
The Fix: Include the Mother Whenever Possible
While we can provide a definitive "yes" or "no" with just the father and child, we strongly advise including the mother’s sample if she is available. It adds an extra layer of clinical precision to your peace of mind dna test.
7. Mishandling Immigration DNA Requirements
Applying for a UK visa or passport based on a family relationship requires a very specific type of DNA evidence. A standard home kit will be rejected by the Home Office or HM Passport Office.
What is required for immigration?
Immigration dna testing uk must be conducted by a laboratory on the approved list. The collection must be witnessed, and the identity of the participants must be verified by a professional. Furthermore, if the family member is abroad, the collection must often take place at a British Embassy or an approved clinic in that country.
The Fix: Use a Specialist Service
Do not attempt to handle immigration DNA testing on your own. At Brashan DNA Services, we specialize in dna test for immigration. We manage the logistics of international shipping and ensure that the "chain of custody" is strictly followed so that your results are accepted first time.

Summary of the Brashan Advantage
When you choose Brashan DNA Services, you aren't just getting a kit; you are getting a professional healthcare service. We focus on:
- Speed: We offer same-day results once the samples reach our laboratory.
- Accuracy: We use UK-accredited labs that test up to 24 or even 42 genetic markers.
- Discretion: Your privacy is our priority. All kits are sent in plain, unmarked packaging.
- Support: We handle complex cases, from uncle-aunt dna testing to confirming paternal lineage.
How to get started?
- Identify your needs: Is this for court (Legal) or personal knowledge (Peace of Mind)?
- Order your kit: Visit our shop to select the correct test.
- Collect your samples: Follow the clear instructions included in our express testing kits.
- Receive results: Most results are delivered via a secure portal within 1-2 working days (or same-day if requested).
DNA testing doesn't have to be a complicated or stressful experience. By avoiding these seven common mistakes, you ensure that you get the answers you need quickly and accurately. If you have a unique situation or need advice on which test is right for you, feel free to contact us today. We are here to help you move forward with confidence.