A broken chain of custody can dismantle a prosecution. iSellPackaging manufactures evidence bags engineered to survive courtroom scrutiny, with tamper-evident closures, sequentially numbered audit trails, and heavyweight film that resists tearing, puncture, and chemical attack. Police departments, crime scene investigators, forensic labs, and correctional facilities use our evidence bags because the seal shows clearly if someone has tampered with it.
Our catalog includes plastic envelopes for documents and small items, gusseted bags for bulkier evidence, and specialty formats for biological samples, narcotics, and firearms. Every bag is available in stock sizes or fully customized to the specifications of your agency or lab.
Agencies with specific format, numbering, or branding needs can get pricing and samples matched to their protocols.
How Our Evidence Bags Protect Chain of Custody
Chain of custody requires proof that an item has moved from collection to analysis to storage without interference. A generic bag cannot provide that proof. Our evidence bags build it in by design.
- Permanent tamper-evident adhesive closure that leaves a visible VOID pattern if peeled, heated, or frozen
- Sequential numbering printed on both the bag and a detachable receipt for matching audit records
- Pre-printed chain-of-custody fields for case numbers, officer initials, dates, times, and transfer signatures
- High-strength coextruded polyethylene that resists tearing, punctures, and chemical solvents
- Opaque film options for sensitive or biological evidence where visibility must be restricted
Who Uses Police Evidence Bags and Forensic Bags
Security bags built to evidentiary standards are used across the justice and public safety community:
- Law enforcement agencies collecting and transporting crime scene evidence
- Forensic laboratories processing biological, chemical, and trace evidence
- Crime scene investigation teams bagging firearms, narcotics, currency, and documents
- Correctional facilities managing inmate property and contraband
- Federal investigators, prosecutors, and expert witnesses requiring courtroom-ready packaging
- Bag brokers and distributors supplying municipal, state, and federal agency accounts
Types of Evidence Bags Available
Standard Evidence Envelopes
Flat plastic evidence envelopes for documents, small items, cash, and trace materials. Standard sizes range from 3 x 5 inches up to letter and legal formats.
Gusseted Evidence Bags
Expandable bags for bulky evidence such as clothing, firearms, or containers. Gussets allow three-dimensional contents without compromising the tamper seal.
Biological Evidence Bags
Film and closures selected for biological specimens, including DNA evidence. Breathable options are available where air exchange is needed to prevent degradation.
Narcotics and Currency Evidence Bags
Reinforced construction with clear windows and sequentially numbered seals, designed to satisfy the documentation standards for seized cash and controlled substances.
Custom Evidence Bags: Branding, Numbering, and Format
Agency requirements vary, and custom evidence bags let departments standardize their process. Customization options include:
- Agency name, logo, badge, and department-specific markings
- Custom sequential numbering systems that align with your case management software
- Pre-printed chain-of-custody fields tailored to your internal protocols
- Custom sizing for specialized evidence categories
- Color-coded film to separate evidence types across divisions or labs
FREQUENTLY ASKED QUESTIONS
We manufacture standard envelopes, gusseted bags, biological evidence bags, narcotics bags, currency bags, and custom-specified formats. Each type uses tamper-evident closures and heavyweight film rated for evidentiary use.
Every bag has a permanent tamper-evident seal, sequential numbering on both the bag and a detachable receipt, and pre-printed fields for case data, officer identification, and transfer signatures. These features combine to document every handoff from collection through storage.
Yes. Our bags use coextruded polyethylene that resists punctures and tears. The tamper-evident adhesive strip reveals any attempt to peel, heat, freeze, or chemically defeat the seal by leaving a permanent VOID pattern.
Yes. Custom options include agency logos, department markings, custom sequential number ranges, pre-printed chain-of-custody fields, non-standard sizing, and color-coded films for specialized divisions.
Custom printed evidence bag minimums typically start at 1,000 units per SKU. Stock evidence bags without custom printing are available in smaller case quantities.
Most agencies begin by requesting a quote with their specifications, including size, quantity, custom features, and desired delivery date. Our team will return pricing, production timelines, and sample availability.