Evidence Security Bag is designed for police evidence storage, forensic sample protection, laboratory handling, customs inspection, confidential documents, medical samples, and chain-of-custody packaging. It supports tamper evident closure, sequence number, barcode, QR code, writable surface, easy tear strip, twin seal, reinforced side sealing, custom logo, warning text, bag size, film thickness, and OEM/ODM evidence bag production.
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Evidence Security Bag is designed for police evidence storage, forensic sample protection, laboratory evidence handling, customs inspection, confidential documents, medical samples, and high-value item transportation. It provides visible tamper evidence, traceable identification, and controlled opening support for applications where chain-of-custody integrity is important.
Compared with ordinary plastic bags, evidence security bags are built with tamper evident closure, sequence number, barcode, writable surface, reinforced sealing, and optional security features. Once the bag is sealed, any unauthorized opening, lifting, resealing, heating, cutting, or manipulation can leave visible evidence for inspection.
Evidence Security Bag uses a tamper evident sealing structure combined with tracking and inspection features. After evidence or samples are placed inside the bag, the closure is sealed. If someone tries to open or reseal the bag, the security closure can show visible warning evidence such as VOID message, adhesive transfer, damaged film, broken closure pattern, or other irreversible signs.
Each bag can also include a sequence number, barcode, QR code, writable information area, or detachable receipt section. These features help police officers, forensic teams, laboratories, couriers, and storage departments record, track, verify, and transfer evidence more clearly.
Evidence handling requires more than simple packaging. The package must help protect the contents, support traceability, reduce disputes, and show clear evidence if unauthorized access occurs. Evidence Security Bag helps improve accountability during collection, storage, transport, laboratory inspection, and courtroom preparation.
For law enforcement, forensic laboratories, customs departments, banks, medical institutions, and investigation teams, a tamper evident evidence bag can support a more reliable chain-of-custody process. It helps users identify whether the evidence package has been opened, replaced, contaminated, or manipulated.
Evidence Security Bag is commonly used for police evidence storage, forensic sample bags, crime scene evidence collection, laboratory sample transfer, customs inspection bags, confidential document bags, medical sample bags, drug test sample bags, cash evidence bags, and investigation material storage.
For police and forensic applications, the bag helps protect collected evidence from unauthorized opening or replacement. For laboratories and medical sample transport, the sequence number and barcode can improve identification and reduce handling errors. For customs or inspection departments, the tamper evident closure supports visual security checking during handover.
Standard security bags are often used for general logistics, retail, banking, or document transport. Evidence Security Bag is more focused on chain-of-custody control and evidence integrity. It usually requires clearer numbering, stronger record areas, better inspection visibility, and more professional tamper evident closure design.
If the customer only needs basic package security, a standard security bag may be enough. If the customer needs police evidence handling, forensic sample protection, or official record tracking, Evidence Security Bag is a better choice because it combines tamper evidence with traceability features.
Evidence Security Bag can be customized with multiple functional features according to the customer’s application. Common options include thermochromic tape, tamper evident closure, easy tear strip, sequence number, multi-directional barcode, twin seal, writable area, transparent document window, reinforced side sealing, and customized warning text.
These features help users improve security control, reduce unauthorized access, simplify inspection, and maintain a clearer chain-of-custody record during storage, transport, and evidence transfer.
Each Evidence Security Bag can be printed with a unique sequence number, barcode, or QR code. This allows every evidence package to be recorded, scanned, verified, and checked during collection, storage, transfer, and final inspection.
Barcode and sequence number tracking can reduce manual input errors and improve identification efficiency. This is especially useful for police departments, forensic laboratories, medical testing organizations, customs authorities, banks, and security logistics teams.
Hanksec can customize Evidence Security Bag according to bag size, film thickness, bag color, closure structure, security level, printing layout, barcode type, sequence number format, QR code, writable surface, easy tear strip position, and final application requirement.
Common customization options include customer logo, warning text, evidence information area, case number area, detachable receipt, barcode, QR code, sequence number, transparent window, opaque film, reinforced side seal, twin seal, thermochromic indication, and private security design.
Before bulk production, customers should test the complete evidence security bag structure under real application conditions. Important testing points include sealing strength, tamper evidence clarity, sequence number accuracy, barcode readability, writable surface performance, film thickness, tear strip function, side seal strength, and final bag usability.
Storage temperature, handling pressure, film material, closure design, printing method, barcode size, and transport conditions can all affect final performance. Sample testing is recommended before confirming large-volume OEM or ODM production.
A security bag is designed to protect valuable items, documents, cash, samples and confidential materials during storage, transportation and handover. Compared with ordinary plastic bags, security bags require clear tamper evidence, reliable sealing strength, traceable identification and easy handling for authorized users.
Hank Security security bags can be customized with multiple functional features, including thermochromic tape, tamper evident closure, easy tear strip, sequence number, multi-directional barcode, twin seal structure, reinforced side seals and writable surface. These features help users improve security control, reduce unauthorized access and maintain a clear chain of custody.
Thermochromic tape provides an additional security layer against heat-based tampering.
When someone tries to use hot air, heat or other thermal methods to open the bag without obvious damage, the thermochromic security layer can show a visible change or warning mark. This helps inspectors identify possible heat tampering attempts more easily.
This feature is especially suitable for high-security applications such as cash bags, evidence bags, confidential document bags, banking bags and high-value product transportation.
The tamper evident closure is the core security feature of a security bag.
Once the bag is sealed, any attempt to open, lift, remove or reseal the closure will leave visible tamper evidence. Depending on the security design, the closure can show VOID messages, security patterns, adhesive transfer, film damage or other clear warning signs.
This helps users quickly check whether the bag has been opened or manipulated after sealing.
The easy tear strip allows authorized users to open the security bag quickly and cleanly without using scissors, knives or other tools.
This design improves user convenience while keeping the tamper evident closure secure before final opening. It also helps prevent random cutting, which may affect inspection, record keeping or evidence preservation.
Easy tear strip is a practical feature for courier bags, document bags, medical sample bags, evidence bags and daily secure handling applications.
Each security bag can be printed with a unique sequence number for item-level identification and traceability.
The sequence number allows every bag to be recorded, tracked and verified during packing, storage, transportation and final delivery. It helps users build a clear chain-of-custody record and reduce the risk of replacement, loss or dispute.
This feature is widely used for cash handling, bank deposit bags, evidence storage, confidential documents, logistics and sample management.
Multi-directional barcode printing allows the security bag to be scanned from different angles during sorting, storage, delivery and verification.
This improves scanning efficiency, reduces manual input errors and supports better digital tracking throughout the whole handling process.
It is especially useful for logistics companies, banks, laboratories, government departments, courier services and organizations that require fast and accurate bag identification.
The twin seal structure uses two sealing areas to improve closure strength and security performance.
Compared with a single sealing structure, twin seal design provides stronger protection and makes unauthorized opening more difficult. It helps create a more reliable sealing effect during transportation, storage and repeated handling.
This feature is suitable for applications that require higher sealing strength, such as cash transportation, confidential documents, evidence storage, banking operations and high-value goods delivery.
Customers interested in Evidence Security Bag can also explore level 4 tamper evident security bags, serial number security bag tape, tamper evident bag tape jumbo roll, cash deposit bag tape, and tamper evident security packaging tapes guide.
For Evidence Security Bag, customers often evaluate tamper evidence clarity, sealing strength, sequence number durability, barcode readability, writable surface performance, chain-of-custody control, and transport packaging reliability. Useful external references include NIJ evidence management resources, GS1 barcode standards, ISTA package testing procedures, and ASTM D3330 peel adhesion testing.
Standard Samples: Hanksec provide free samples, but we require your courier account (e.g., FedEx, DHL or UPS) for shipping. If you don’t have an account, the shipping cost will be borne by you.
Custom Samples: If mold creation or special processing is required, corresponding mold costs or sample fees will be charged.
For products requiring customization from rolls, standard MOQs ensure efficiency. However, please feel free to contact us to discuss – we can find the best solution based on our current stock.
Hanksec leveraging our mature production system and raw material inventory, we provide clear and efficient delivery timelines for orders of all scales:
Samples: Standard samples are dispatched within 1-2 working days for quick decision-making.
Small/Medium Batches: The standard lead time is 3-5 working days for rapid response.
Mass Customization: For complex mass production (7-20 working days), we precisely coordinate resources to ensure on-time delivery.
Hanksec to ensure a smooth collaboration, our process is designed for clarity and efficiency. Your key involvement is as follows:
Step 1: Provide Requirements – Please share detailed requirements including applied surfaces, how to use and so on.
Step 2: Receive Quotation – We will prepare a customized quotation for you according to your exact requirements.
Step 3: Approve Samples – Verify samples to ensure they fully meet your expectations.
Step 4: Confirm Order – Sign the Proforma Invoice (PI) to formalize the order.
Step 5: Pay Deposit – Production commences immediately after we receive the deposit.
Step 6 & 7: Production & Shipping – Handled efficiently by us.
Step 8: Receive Support – We continue to provide support after the transaction. We are here whenever you need us.
Hanksec offer comprehensive customization solutions across the following ten aspects to meet your branding and security needs:
Size: Customized to any specification based on the application.
Color: Precisely matched by providing a Pantone color code.
Film Thickness: Various options available to suit different durability requirements.
Hidden Messages: Covert text, images, or patterns can be embedded.
Thermochromic Ink: Special ink that changes color or disappears with heat.
UV Ink: Hidden graphics revealed under ultraviolet light.
Holographic Effect: Customized dynamic visual holograms.
Barcode or QR Code: Integrated variable data for traceability and marketing.
Serial Numbers: Unique identification for each item.
Perforated Receipts: Easy-to-tear stubs for warranties or loyalty programs.
Hanksec Thanks to a special top coating on our materials, our tamper-evident substrates are highly compatible with almost all mainstream printing methods, including:
Thermal Transfer Printing
Screen Printing
Rotary Printing
Offset Printing
Hanksec equipped to handle a variety of International Commercial Terms (Incoterms) and can recommend the most suitable option based on your logistics control. Our professional team ensures clarity and reliability from the factory to the final destination.
EXW (Ex Works): The buyer bears all transportation processes and costs.
FOB (Free on Board): The seller is responsible for delivering the goods on board the vessel at the port of shipment; risk transfers to the buyer thereafter.
CNF/CFR (Cost and Freight): The seller pays for freight to the port of destination, but insurance is the buyer’s responsibility.
CIF (Cost, Insurance and Freight): The seller covers freight and insurance to the port of destination.
Hanksec provide flexible logistics solutions based on order volume:
For Small Trial Orders: Typically shipped via international express (e.g., FedEx, DHL, UPS) or by air for timeliness.
For Large Volume Orders: Shipped by sea for cost-effectiveness or by air for speed, according to your requirements.
Hanksec pleased to offer complimentary professional design and modification services to ensure your artwork is perfectly adapted for our production processes.
To guarantee print quality and production efficiency, we strongly recommend submitting editable vector files in the following formats:
Adobe Illustrator (.ai)
CorelDRAW (.cdr)
PDF (with all fonts outlined or embedded)
Our design team will optimize based on your initial draft, ensuring a seamless transition from design to final product.
If you have any questions about our products and service,please feel free to contact us!
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