--- title: "1 new message" description: "Tamper evident security bags from MSP Packaging. Custom printed, void-seal and numbered options for banking, cash handling and secure transit across the UK." lang: en json-ld: --- [![MSP Packaging](/assets/msp-logo-B_E9uXWn.png)](/) [Home](/) Products About Us [FAQ](/faq)[Contact Us](/contact-us) [Request a Quote](/contact-us) # Tamper Evident Security Bags Businesses that handle cash, confidential documents, valuable items or sensitive materials require packaging that delivers maximum security and tamper protection. Our range of security bags provides reliable, tamper-evident solutions designed for organisations that require secure packaging and controlled handling processes. Our wholesale security bags are used by banks, retailers, logistics companies and public sector organisations that require dependable packaging for secure transport, deposit handling and asset protection. Available in a variety of sizes, materials, sealing systems and custom printed designs, our tamper proof bags are designed to provide high levels of protection while supporting efficient handling and tracking processes. Looking for a specific range? Browse our [police and forensic evidence bags](/evidence-bags), [cash security bags](/cash-security-bags), [money bags and coin bags](/money-bags), [security seals and tamper evident labels](/security-seals) or [pharmacy and dispensing bags](/pharmacy-bags). [Enquire Now](/contact-us) ![Clear tamper evident security bag with barcode and void seal](/__l5e/assets-v1/5a7ad858-0fe8-4565-85f3-8420dea59f36/tamper-evident-security-bag.png "Custom printed tamper evident security bag") ## Industries We Serve Our tamper evident security bags are trusted across sectors where chain-of-custody, accountability and secure transit are non-negotiable. ### Retail & Banking Retailers and banks rely on tamper evident bags to move takings safely from till to cash office to bank, with a clear audit trail at every handover. - • Daily cash deposits and till drops - • Loss prevention and shrinkage control - • Serial numbered bags for reconciliation [Cash security bags →](/cash-security-bags)[Money bags & coin bags →](/money-bags) ![Retail cash office staff sealing bank notes into a tamper evident security bag](/__l5e/assets-v1/f5ae3084-e021-4c19-a346-c65669c5126c/Retail_Tamper_Proof_Bags.png "Tamper evident cash security bag used for retail takings") ### Police Police forces and forensic teams use tamper evident bags to preserve the integrity of evidence from the scene through to storage and court. - • Evidence and property bagging - • Unbroken chain-of-custody records - • Writable panels and barcode identification [Police & forensic evidence bags →](/evidence-bags) ![Police officer sealing an item into a numbered tamper evident evidence bag](/__l5e/assets-v1/db926766-50ab-4b54-acc9-b49c71adf079/Police_Evidence_Bags.png "Numbered tamper evident police evidence bag") ### Medical Hospitals, pharmacies and laboratories use tamper evident packaging to protect medicines, samples and patient property in transit. - • Pharmacy dispensing and controlled drugs - • Pathology and specimen transport - • Patient valuables and property bags [Pharmacy & dispensing bags →](/pharmacy-bags)[Security seals & labels →](/security-seals) ![Clinician sealing medication into a tamper evident security bag in a hospital pharmacy](/__l5e/assets-v1/86369360-a57e-47e4-9366-8c44443f07a1/Healthcare.png "Tamper evident security bag for pharmacy dispensing") ### Aviation Airlines, airports and duty free operators use security bags to seal goods, cash and documentation across secure airside processes. - • Duty free and STEB-style sealed goods - • Onboard cash and revenue handling - • Secure document and key transfer [Cash security bags →](/cash-security-bags) ![Sealed tamper evident security bags at an airport service counter](/__l5e/assets-v1/545cc12d-7945-4393-be27-140a4afa09d9/Airline_Tamper_Evident_Bags.png "Clear tamper evident security bag used for airline cash handling") ## Tamper Evident Bags Wholesale We have capacity to produce large volumes of tamper proof bags. From thousands to millions, we can meet your requirements. Security bags are widely used in industries where chain-of-custody and tamper protection are critical. Common applications include: - • Cash handling and bank deposits - • Retail cash management - • Document security and confidential paperwork - • Pharmaceutical and medical transport - • Evidence and forensic storage - • Courier and logistics security packaging - • Gaming and casino cash handling Our security bags are available in bulk quantities, making them suitable for organisations that require large-scale supply and consistent security packaging standards. ![Security bags fan display](https://static.wixstatic.com/media/2c3a7c_91e83fa764d94ec8a6a7b3f179e74f71~mv2.png/v1/fill/w_808,h_808,al_c,q_90,usm_0.66_1.00_0.01,enc_avif,quality_auto/fan.png) ## How Tamper Evident Bag Seals Work ### High security bags with void seals and tamper resistant closures Security bags are designed with tamper evident sealing systems that clearly indicate if a bag has been opened or interfered with. Once sealed, the bag cannot be opened without visible evidence of tampering, helping organisations maintain secure transport procedures and accountability throughout the supply chain. ## Key Features of Tamper Evident Bags Our security bags include a range of protective features designed to enhance security. These may include: Permanent tamper evident adhesive seals VOID security tape technology Serial numbering for tracking Barcode identification Writable panels for documentation Strong puncture resistant materials These features help ensure secure handling of valuable items and sensitive materials during transport and storage. ##### Cash Deposit Bags ###### Security Bags for Cash Handling & Banking Cash deposit bags are widely used by banks, retailers, cash handling companies and financial institutions for the safe transport of cash and valuables. - • Retail store cash deposits - • Bank deposits - • Cash collection services - • Cash transport between business locations - • ATM servicing and replenishment ##### Courier & Transit Security Bags ###### Secure Transport Bags for Logistics & Distribution Security bags are also widely used within logistics and courier operations to protect valuable or confidential items during transport. - • Secure document transport - • Confidential paperwork - • Legal documents - • Passports and identification documents - • Valuable items requiring secure delivery ## Custom Printed Tamper Proof Security Bags ### Bespoke Security Bags for Identification & Branding Many organisations require custom printed security bags to improve tracking, identification and brand presentation. ##### Customisation Options - • Company logos and branding - • Unique serial numbering - • Barcodes for tracking systems - • Custom warning messages - • Return addresses or contact details - • Multiple colour printing options Custom printed security bags help organisations maintain clear identification, improved traceability and stronger operational security procedures. ![Small tamper evident security bag](https://static.wixstatic.com/media/2c3a7c_932d7b23b2e84b2081cd5208a3589432~mv2.jpg/v1/fill/w_496,h_496,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/Small%20Security%20Tamper%20Evident%20Bag.jpg) ## Clear & Opaque Security Bag Options ### Different Materials for Different Security Applications Security bags are available in both clear and opaque materials, allowing organisations to choose the most appropriate packaging solution depending on the application. ##### Clear Security Bags - • Airports and transport hubs - • Event security - • Evidence handling - • Controlled environments ##### Opaque Security Bags - • Cash deposits - • Confidential documents - • Sensitive materials - • Secure courier deliveries Both options are designed to provide tamper evident protection and strong sealing performance. ## Heavy Duty Security Bags Manufacturer ### Durable Security Packaging for High-Value Items Some applications require additional strength to protect heavier or more valuable items. Our heavy duty security bags are produced using stronger materials to provide enhanced durability. ##### Typical applications include: - • Valuable item transport - • Jewellery or precious metals - • Industrial components - • Secure document archives These bags provide added strength and puncture resistance while maintaining tamper evident security features. ## Tamper Evident Bags vs Tamper Proof Bags The two terms are used interchangeably, but they describe slightly different things. A tamper evident bag is designed so that interference is impossible to hide — the seal voids, the film tears, the numbering no longer matches. A truly tamper proof bag, one that cannot be opened at all, does not exist in flexible packaging; anything can be cut given enough time. What matters operationally is evidence, not resistance: whoever receives the bag must be able to tell instantly whether it arrived as it left. That is what every bag in our security range is built to do, whether it is sealed with an integrated VOID closure or with separate [security seals and tamper evident labels](/security-seals). ### Are tamper evident bags and security bags the same thing? In practice, yes. Security bag is the broader trade term for any bag used to protect cash, evidence, documents or valuables in transit, and in the UK virtually all of them are tamper evident. Our security bag range and our tamper evident bag range are the same products. ### What is tamper evident packaging? Tamper evident packaging is any pack that shows visible, irreversible proof of being opened — security bags, VOID sealed cartons, sealed pharmacy bags and security labelled containers. It protects the audit trail rather than the contents themselves, so an organisation can prove where a breach occurred. ## Explore Our Full Range Every product below is manufactured to the same tamper evident standards. Choose the range that matches your application. [Police Evidence Bags Numbered forensic and police evidence bags with full chain-of-custody panels. View range ](/evidence-bags)[Cash Security Bags Secure cash bags for banking, retail cash handling and CIT collections. View range ](/cash-security-bags)[Money Bags & Coin Bags Coin bags and money bags for tills, cash rooms and coin deposit runs. View range ](/money-bags)[Security Seals & Tamper Evident Labels Security seals and tamper evident labels for cages, containers and cartons. View range ](/security-seals)[Pharmacy & Dispensing Bags Pharmacy bags and dispensing bags for community and hospital pharmacy. View range ](/pharmacy-bags)[Wicket Bags High-speed wicket bags for automated bagging and food production lines. View range ](/wicket-bags)[Mailing Bags Strong opaque mailing bags for e-commerce despatch and returns. View range ](/mailing-bags) ## Wholesale Tamper Evident Security Bags ### Reliable Bulk Security Bag Supply Organisations that rely on security packaging require consistent supply and dependable product quality. Our wholesale security bags are available in bulk quantities, supporting organisations that require large-scale supply across multiple locations. Bulk and pallet quantity supply Consistent product quality Competitive wholesale pricing Multiple sizes and specifications Custom printed security bag options If your organisation requires high-quality security bags in bulk quantities, we offer a wide range of tamper evident security bags, cash deposit bags, courier security bags and custom printed security packaging designed to support secure handling and transport operations. [Request a Quote](/contact-us) #### About Us - [Our Story](/about-us) - [Initial Packaging Solutions Ltd](/initial-packaging-solutions) - [FAQ](/faq) - [Contact Us](/contact-us) #### Our Products - [Security Bags](/security-bags) - [Evidence Bags](/evidence-bags) - [Cash Security Bags](/cash-security-bags) - [Money Bags & Coin Bags](/money-bags) - [Security Seals & Labels](/security-seals) - [Pharmacy Bags](/pharmacy-bags) - [Wicket Bags](/wicket-bags) - [Mailing Bags](/mailing-bags) - [Bespoke Packaging](/security-bags) #### Resources - [Blog](/blog) - [Sustainability](/about-us) - [Product Specifications](/security-bags) - [Help & Support](/faq) - [Request a Quote](/contact-us) #### Contact - [info@msppackaging.co.uk ](mailto:info@msppackaging.co.uk) - [Get in touch ](/contact-us) [![MSP Packaging](/assets/msp-logo-B_E9uXWn.png)](/) ##### Registered Office MSP Packaging Ltd · 9 Brighouse Business Village, 9 River Court, Middlesbrough, England, TS2 1RT ##### Company Details Registered in England & Wales · Company Reg No: 16551194 · VAT Reg No: GB 496376534 © 2026 MSP Packaging Ltd. 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