Tamper evident security envelopes / bags

Security Bags

A range of premium quality single-use, tamper-evident envelopes/bags, with the highest level of security adhesive closure.  Any attempt to reopen this security bag results in a clear Alert / Void message that cannot be reversed.

Tamper evident security envelopes / bags

Tamper evident security envelopes and bags from Label Lock™ are designed to provide maximum protection, traceability and visible evidence of unauthorized access for high-risk and security-sensitive applications. Manufactured from durable transparent recyclable polyethylene (LDPE), these security bags combine strong physical protection with advanced tamper evident features to help organisations securely transport, store and manage valuable or sensitive contents.

Each security bag is supplied with:

  • Unique sequential numbering

  • Matching barcode identification

  • Tear-off receipt with identical numbering

  • Tamper evident adhesive closure

  • Strong recyclable LDPE material

  • Writable information area

The numbering on every bag is guaranteed to be unique, ensuring full traceability and improved chain-of-custody management. The integrated barcode system uses standard barcode symbology, allowing easy scanning, tracking and integration into operational or logistics systems.

A practical tear-off receipt is attached to each envelope and includes:

  • Matching bag number

  • Space for signatures

  • Date fields

  • Sender details

  • Recipient details

  • Audit and tracking information

This helps organisations maintain accurate documentation and secure transfer records throughout the transportation and handling process.

Each envelope also includes a matt white writing area approximately 150 mm x 150 mm, providing sufficient space for handwritten notes, identification details, routing information or operational instructions.

Label Lock™ tamper evident security bags are suitable for a wide range of high-security applications including:

  • Cash deposits

  • Cash in transit operations

  • Vault management

  • Banking and financial services

  • Gaming and casino applications

  • Forensic sample transport

  • Police and law enforcement evidence sealing

  • Pharmaceutical and medical transport

  • Confidential document handling

  • Retail cash management

  • Secure logistics and courier services

Once sealed, the envelope provides clear visible evidence if tampering or unauthorized opening is attempted, helping protect contents and maintain chain-of-custody integrity.

Additional customisation options may include:

  • Company logos

  • Custom numbering systems

  • Special barcoding

  • Security printing

  • Custom sizes

  • Opaque or coloured materials

  • Department or branch identification

Label Lock™ security envelopes and bags provide a reliable, professional and cost-effective solution for organisations requiring secure transport, tracking and tamper evident protection of valuable or sensitive items.

Please contact us for additional specifications, available sizes, customisation possibilities and pricing information.

FAQs

How do you protect secured documents?

Euro Holography uses advanced security printing technologies to protect documents against counterfeiting, copying, and unauthorized modifications. Features may include holograms, watermarks, security inks, micro text, serial numbering, and anti-copy elements.

What types of security features can be added?

We provide a wide range of security solutions including:

  • Hot-stamped holograms
  • Watermarks
  • Security fibers
  • Micro text & micro images
  • Guilloche security designs
  • RFID & NFC technologies
  • Chemical protection features
How is personalized data protected?

We secure personalized data against tampering and unauthorized changes using specialized protection methods for printed and handwritten information.

Can you protect documents printed with different technologies?

Yes. Our protection solutions are compatible with documents printed using inkjet, LaserJet, dot-matrix printers, as well as handwritten data.

What types of secured documents do you produce?

We produce a variety of secured documents such as certificates, transcripts, licenses, title deeds, stock certificates, export certificates, health certificates, and many others.

Can security solutions be customized?

Yes. Every security solution can be customized according to the document type, security level, branding, and client requirements.