
Legal Sibling DNA Testing with 99% Accurate Results
Legal Sibling DNA Testing
A sibling DNA test is used to determine if two or more siblings are biologically related as full siblings, half siblings or not related biologically.
Why choose DNA Legal for Sibling Testing?
- Highest Accuracy Testing Guaranteed
- 4x more DNA tested compared to other labs
- Support pre and post testing
- Painless DNA mouth swab collections
- 100% Accurate Results
A legal Sibling DNA Test is Required for the Following Reasons:
- When providing legal information for immigration cases
- Complex family reconstruction situations where one or more parents are able to be tested.
This DNA test requires a DNA sample to be taken by a professional doctor, nurse, or accredited sampler and cannot be self administrated.
Our labs conduct legal testing that is ISO/IEC:17025 accredited and ISO:9001:2008 certified for use in the UK court system.
Sibling Testing Options
We can establish three different types of Sibling relationships including;
- Full Sibling vs Half Sibling - this proves if two siblings share one or two parents in common.
- Half Sibling vs Unrelated - this proves if two people share one parent in common or are unrelated.
- Full Sibling vs Unrelated - designed for situations where siblings may either be related or not.
It is our aim with our sibling tests to establish either a 99% proof of relationship or 100% exclusion. This range depends on who can be tested within the family.
We Arrange Everything For You

Simple Step-By-Step Instructions

Nationwide Collection Network

Global Clinic Availability

Seamless Communication With All Parties

Fast Results In 3-7 Business Days

No Charge For Split Invoicing
The Legal Sibling DNA Testing Process
Sample Collection
Over 2,000 global clinic locations and a nationwide UK sample collector network.
Pre-Appointment Procedures
A dedicated case manager will provide full support for your client.
Notifications and Reminders
Streamlined notification procedures to help your client stay on track.
At the Appointment
Trained sample collectors adhere to RCN regulations for your clients peace of mind.
After the Appointment
Secure delivery of samples to our laboratory and full tracking records.