Every piece of evidence collected tells a story—but only if it reaches the courtroom in its original, untampered state. Preserving the integrity of evidence begins at the crime scene, where the right tools, such as tamper-evident bags, are essential to avoid legal challenges.
This guide explains how to label and seal evidence bags effectively, outlining best practices to prevent contamination and maintain security measures throughout the process. From the importance of proper documentation to avoiding common pitfalls, this article is your comprehensive resource for ensuring the safety and reliability of crucial evidence.
What is an Evidence Bag
An evidence bag, also known as a police evidence bag, is a key tool used in investigations to securely store and transport collected items while protecting them from tampering, contamination, or damage. These bags ensure the integrity of evidence by providing a sealed environment that maintains its condition from the crime scene to the courtroom.
There are several types of evidence bags, each suited for specific needs:
- Plastic evidence bags: Known for their durability and resistance to environmental factors, these are ideal for storing non-biological items.
- Paper evidence bags: Often used for biological samples, these are breathable and help prevent mold or other forms of contamination.
- Tamper-evident evidence bags: Featuring advanced security measures like tamper-evident tape and labels, these provide clear indicators if the bag has been opened or altered, adding an extra layer of protection.
The choice of tamper evidence bag depends on the type of evidence being collected, its condition, and the specific requirements of the investigation.
Why Proper Labeling and Sealing Matter
Proper labeling and sealing of evidence bags are foundational to maintaining the chain of custody, which ensures that evidence remains secure, traceable, and admissible in court. The chain of custody documents every instance of handling, transportation, and storage, providing a clear timeline from the crime scene to trial.
Accurate labeling ensures that all necessary details about the evidence are recorded, while tamper-evident seals guarantee the integrity of the evidence. Failing to properly label or seal evidence can have severe consequences. Without secure sealing, tampering or contamination becomes a significant risk, potentially compromising critical findings.
Moreover, improper labeling can lead to misidentification or misplaced evidence, eroding its credibility and jeopardizing the outcome of an investigation. Ensuring meticulous labeling and using reliable sealing methods are non-negotiable practices in evidence handling.
Tools for Securing Evidence
Security Labels
Security labels are essential for protecting evidence and providing visible proof of tampering. These specialized labels are designed with tamper-evident features that clearly indicate if the seal has been broken. Common features include void messages, holograms, or color-shifting inks that reveal any unauthorized access.
By placing these labels on evidence bags or containers—investigators can ensure the integrity of the contents remains intact throughout the investigation. The use of security labels is critical in maintaining the chain of custody and safeguarding the evidence’s credibility.
Security Bag Tape
Security bag tape is another vital tool for securing evidence. This tape is specifically designed to seal evidence bags with tamper-evident properties. It often includes printed messages, such as OPEN VOID, that appear when the tape is removed or tampered with.
This added layer of protection ensures that evidence remains sealed and secure during transportation and storage. The durability of security tape plays a key role in maintaining the integrity of evidence and preventing unauthorized access.
Step-by-Step Guide: How to Label and Seal an Evidence Bag
Protecting evidence starts with correct labeling and sealing. And here is a clear and step-by-step process to label and seal an evidence bag. Follow these steps for a step-by-step approach:
Step 1: Select the Bag
Before collecting any evidence, select the right evidence bag. Consider the nature of evidence (wet, dry, fragile, etc.) and the required level of security. Prioritize tamper-evident bags whenever possible to provide a clear indication of any tampering. Select a bag of the appropriate size to comfortably hold the evidence without excessive folding or crushing.
Pay attention to ensure the bag is clean and free from any pre-existing markings or contamination.
Step 2: Label the Bag
Once you have the right evidence bag selected, the next step is to properly label it. Labeling is a critical part of maintaining the chain of custody and ensuring that the evidence can be identified and tracked throughout the investigation process.
Here is the essential information that should be included when labeling an evidence bag:
- Case Number: A unique identifier for the specific case.
- Item Number: A sequential number assigned to each item of evidence within the case.
- Date and Time of Collection: Precise date and time the evidence was collected.
- Location of Collection: Specific location where the evidence was found.
- Brief Description of Contents: A concise description of the items inside the bag (e.g., “One broken knife,” “Bloodstained shirt”). Avoid overly detailed descriptions that might be misinterpreted.
- Collector’s Name and Initials: The name and initials of the person who collected the evidence.
- Witness(es) Name(s) and Initials (if applicable): Names and initials of any witnesses present during collection.
It’s worth noting that the label should be permanently affixed to the bag, ideally using a waterproof marker.
Step 3: Apply Label and Security Tape
After labeling the evidence bag, it’s essential to apply security labels and tamper-evident tape to provide an added layer of protection. These tools ensure that if someone tries to interfere with the evidence, it will be immediately apparent.
Tips for Applying Security Labels
Apply a security label that is designed to show evidence of tampering. These labels often include features such as VOID messages, holograms, or color-changing elements that are visible if the label is removed. Once placed, these labels should cover the opening of the evidence bag and any seams or flaps. This guarantees that the bag’s contents are sealed and that tampering will be easily noticeable.
Tips for Applying Tamper-Evident Tape
In addition to the security label, use tamper-evident tape to reinforce the bag’s seal. This tape typically has a pattern or message that will become visible if the tape is removed or disturbed. It is designed to leave an irreversible mark or residue on the bag to show that it has been opened. Apply the security tape across the opening of the bag and seal it completely.
Step 4: Check the Seal for Proper Adherence
After applying the security label and tamper-evident tape, it is crucial to check the seal to ensure that it is properly adhered to. A poorly sealed bag can lead to compromised evidence, especially if the seal is easily broken or tampered with.
- Visual Inspection: Inspect the tape and labels for any visible gaps or signs that the seal might not be secure. Make sure that the tape has fully adhered to the evidence bag, and that no part of the bag is left open or vulnerable to interference.
- Adhesion Test: Gently tug on the tape or security label to ensure it is firmly attached to the bag. If it is not securely affixed, replace it with a new tamper-evident tape or security label. A weak seal could jeopardize the evidence’s integrity.
By taking the time to check the seal, you ensure that the evidence is fully protected and ready for transportation to the next phase of the investigation
Step 5: Document the Process
The final step in the process is to document every detail of the labeling and sealing procedure. Accurate documentation is a critical part of maintaining the chain of custody, which tracks the evidence from the moment it is collected until it is presented in court. Any gaps or inconsistencies in the documentation could lead to challenges regarding the evidence’s authenticity.
The chain-of-custody log should include:
- A Record of Handling: This includes who handled the evidence, when it was handled, and where it was stored or transported. Each person involved in handling the evidence must sign and date the log to confirm their role in the chain.
- Log of Seals: Document the types of security labels and tamper-evident tape applied, including serial numbers or other identifying features. This allows investigators to trace back to the exact materials used to seal the evidence.
- Any Changes in Custody: If the evidence is transferred between individuals or locations, each step must be documented in the log to ensure full transparency.
By maintaining a clear and accurate chain-of-custody log, investigators can ensure that the evidence remains secure and uncompromised throughout the investigation, ultimately supporting its admissibility in court.
Common Mistakes to Avoid
One of the most common mistakes when labeling and sealing evidence bags is using non-tamper-evident materials. When bags, tape, or labels don’t clearly indicate any signs of tampering, it compromises the integrity of the evidence.
This oversight can have serious consequences, as altered or compromised evidence may go undetected, undermining its credibility and admissibility in legal proceedings. Legal cases depend on trust in the handling and preservation of evidence—making tamper-evident solutions non-negotiable.
Also, it’s important to test the seal’s integrity before finalizing the sealing process. Many times, investigators assume the seal is secure, but a weak seal can result in contamination or tampering. Always check the adherence of security bag tape or tamper-evident closures to ensure the bag is properly sealed and that there’s no potential for compromised evidence later on.
A thorough check minimizes the risk of compromised evidence, ensuring it remains protected throughout the investigation and beyond.
Best Practices for Evidence Handling
To maintain integrity in the chain of custody, it’s essential to follow best practices for evidence handling. Always handle evidence with care, minimizing direct contact and ensuring it is stored in a secure location immediately after collection. Keeping evidence in tamper-evident bags and using security labels ensures that any potential tampering will be immediately noticeable.
Besides, periodic training for all team members on proper handling and sealing techniques is critical as well. Over time, procedures may evolve, and investigators need to stay updated on the best practices for evidence management. Regular training ensures everyone understands the importance of maintaining evidence integrity and prevents common mistakes such as improper labeling or sealing.
Finally, implementing a clear chain-of-custody log is a key element in best practices for evidence handling. Documenting each step of the evidence’s journey—from collection to storage to presentation in court—ensures a clear and verifiable record. This documentation adds another layer of security to the evidence, reinforcing its credibility and reducing the likelihood of legal challenges.
FAQs
What type of evidence bag should I use for biological samples?
For biological samples, use paper evidence bags that allow the contents to breathe and prevent contamination.
How do I know if my security label is tamper-evident?
A tamper-evident security label will show visible signs of damage or tampering if removed or altered.
Can I reseal an evidence bag once it’s been opened?
Once an evidence bag is opened, it should not be resealed, as it could compromise the integrity of the evidence.
Conclusion
Ensuring that evidence is properly labeled and sealed is essential for maintaining its integrity. By taking the necessary precautions, such as using tamper-evident solutions and documenting every step, investigators can safeguard the evidence from contamination or tampering. This process is vital for preserving the chain of custody and upholding the credibility of the case in court.
Don’t Risk It – Protect Your Evidence Today!
Protect your evidence with Shosky Security’s range of tamper-evident products. From bags and security labels to tamper-proof sealing tapes, we provide everything needed to ensure the safety and integrity of your evidence. Contact us today to discover how we can help you secure your critical materials.
