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KAT Group Ltd

KAT Group Ltd maintains strict Chain of Custody procedures to ensure all drug, alcohol, and DNA samples are collected, handled, transported, and processed in a secure and legally defensible manner.

1. Purpose

This policy ensures that every sample is protected from tampering, contamination, substitution, or misidentification. Our procedures meet industry standards for workplace testing, legal testing, and UKAS‑accredited laboratory requirements.

2. Identification & Verification

Before collection, we verify the identity of each donor using approved identification documents.
Collectors record:

• Donor details

• Date and time of collection

• Type of test

• Any relevant observations

3. Sample Collection

All samples are collected by trained personnel following strict protocols.
We ensure:

• Use of sealed, tamper‑evident collection kits

• Clear instructions to donors

• Controlled collection environments

• Proper PPE and hygiene standards

4. Documentation

A Chain of Custody form is completed for every sample.
This includes:

• Donor information

• Collector information

• Signatures from both parties

• Unique sample reference numbers

• Time and date stamps

Forms must be complete, accurate, and legible.

5. Sealing & Labelling

Each sample is:

• Immediately sealed with tamper‑evident security seals

• Labelled with unique identifiers

• Cross‑checked against documentation

Donors confirm the seal is intact before signing the form.

6. Secure Storage

Samples are stored in secure, restricted‑access areas until transportation.
Storage conditions follow laboratory requirements to maintain sample integrity.

7. Transportation

Samples are transported using approved couriers or secure delivery methods.
We ensure:

• Continuous tracking

• Secure packaging

• No unauthorised access

• Delivery directly to the accredited laboratory

8. Laboratory Handling

Upon arrival, the laboratory:

• Confirms seal integrity

• Verifies documentation

• Logs the sample into their system

• Reports any discrepancies immediately

Only UKAS‑accredited laboratories are used.

9. Reporting

Results are issued only to authorised individuals or organisations.
All reports include:

• Sample reference numbers

• Date of analysis

• Laboratory accreditation details

10. Record Retention

Chain of Custody records are retained for a minimum of 6 years in secure storage.

11. Breaches

Any suspected breach of Chain of Custody is investigated immediately.
If integrity cannot be confirmed, the sample is rejected and the client notified.