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Evidence Lockers vs. Staff Lockers: What Changes

Sep 23
6 min read

Compliance reviewed by Onur Oncer, SDVOSB Materials compliance lead.


Staff wardrobe lockers, inmate property storage and evidence lockers get bought on one line item, and they should not be. The requirement that separates them is documented chain of custody. SDVOSB Materials Technology & Supply LLC supplies all three, and only the evidence locker has to prove who held an item, when, and what happened to it next.


One Word, Three Unrelated Storage Problems


Most facility packages list "lockers" once, with a quantity and a size. Fine for a gym. It falls apart in a jail, a state Department of Corrections (DOC) intake area, or a police unit on a correctional campus. Our anti-ligature and correctional furniture procurement guide covers the wider category; this post is only about the three storage types.


A staff wardrobe locker holds a coat and a phone. An inmate property locker has to produce a defensible inventory the day its owner is released. An evidence locker holds material that may end up in a courtroom, and every transfer of it has to be recorded. Same steel, three different obligations.


What Actually Separates the Three


Each line names the storage category, then who gets access, then the record the facility has to produce on demand. Buy all three on one line and the evidence bank inherits the requirements of a gym locker.


  • Staff wardrobe lockers. Access: the assigned employee, plus a supervisor holding the master. Record: an assignment roster and a spare-key log. The failure case is a lost key and a drilled cylinder.

  • Inmate property and belongings storage. Access: property room staff, never the owner while in custody. Record: an itemized inventory signed at intake and again at release. The failure case is a disputed missing item with no signature behind it.

  • Evidence lockers. Access: the submitting officer on one side, the evidence custodian on the other, nobody else. Record: an unbroken chain of custody from seizure through final disposition. The failure case is evidentiary, not a facilities complaint.


Single-Door and Pass-Through Evidence Lockers


A single-door unit opens on one face. The officer deposits an item and locks it; the custodian opens the same door later. Retrieval by the depositing officer has to be impossible once the door shuts, which is why these use one-way deposit hardware and a custodian-held key.


A pass-through locker is built into the wall between the intake side and the secure property room, with a door on each face. The officer loads from the booking side and property staff remove the item from the back, inside the secure envelope. The National Institute of Standards and Technology (NIST) describes this arrangement in its Biological Evidence Preservation Handbook, NIST Interagency Report 7928, where segmented commercial units are installed in the wall so property room personnel remove evidence from the back.


A pass-through unit cut into an existing masonry wall is a construction item, not a furniture item. The opening and its fire rating belong to the general contractor. Price the lockers as furniture while that opening sits unfunded, and delivery arrives before there is anywhere to put it.


Cold Storage and Drying: Where the Spec Stops Being Furniture


Some evidence cannot sit in a steel box at room temperature. NIST Interagency Report 7928 tells handlers holding a wet item temporarily to seal it in an impermeable, nonporous container and keep it in a refrigerator at 2 °C to 8 °C, roughly 35 °F to 46 °F, out of direct sunlight. Refrigerated and freezer units come in pass-through form too.


Drying is a room, not a cabinet in a corner. The handbook keeps a drying area out of direct sunlight, holds temperature variation between 15.5 °C and 24 °C, that is 60 °F to 75 °F, keeps relative humidity at or below 60 percent, and calls for surfaces that can be decontaminated after every use. A dedicated drying room runs under negative pressure at 12 to 15 air changes per hour, vented to the exterior. The alternative is a drying cabinet with high-efficiency particulate air (HEPA) filtration.


Two consequences. Refrigerated and freezer units should carry a temperature alarm monitored around the clock, because a compressor that fails overnight is a preservation failure nobody finds until the item is needed. And a negative-pressure drying room is mechanical scope that belongs on the drawings before anyone prices lockers, the same air-handling logic in our guide to fume hoods and air safety equipment for federal facilities.


Key Control, Access Logs and a Named Custodian


Hardware is half the answer. NIST Interagency Report 7928 recommends assigning a custodian responsible for preventing loss, premature destruction and preventable degradation, and having that custodian audit the property room. Before the request for quotation goes out, settle four hardware questions: keyed, keypad or credential access; whether the unit must produce an event log; who holds the override; and whether tracking supports barcode or radio frequency identification (RFID) inventory. None of those retrofit cheaply.


How to Write the Line Item


Split it. Name the three categories separately with their own quantities. For the evidence bank, state single-door or pass-through, wall type and opening dimensions, the lock and logging requirement, and whether refrigerated, freezer or drying capacity is in scope. Then name who signs for the keys. Written that way, the anti-ligature argument stays in the housing units with the anti-ligature failure modes that defeat a specification and the behavioral health versus adult corrections specification.


SDVOSB Materials supplies all three locker categories through its Justice, Health and Corrections division, with PACLINE overhead conveyor systems for uniform and property handling. Past performance includes locker room storage at Central New York Psychiatric Center in Marcy, New York, locker room storage with anti-ligature cell sets at Capital District Youth Detention Center in Albany, New York, and a property storage conveyor at Sumter Lee Detention Center in South Carolina.


Credentials are verifiable on the company's Small Business Administration (SBA) Small Business Search profile: Service-Disabled Veteran-Owned Small Business (SDVOSB) certification, the Correction, Detention and Prison Cert, New York State Service-Disabled Veteran-Owned Business (SDVOB) Cert Control # 171538, and Department of Veterans Affairs Disabled Veteran Business Enterprise (DVBE). SDVOSB Materials does not hold its own General Services Administration (GSA) Schedule; GSA orders run through GSA-registered partner vendors. It holds The Interlocal Purchasing System (TIPS) contract 230701, and its North American Industry Classification System (NAICS) codes are on the SAM.gov entity record.


Unique Entity Identifier (UEI) K39HBMPLN4B3 | Commercial and Government Entity (CAGE) code 7YX60 | Employer Identification Number (EIN) 82-2895228. Registered active on SAM.gov.


Frequently Asked Questions


Can one locker product cover staff, inmate property and evidence?


No, and trying is how facilities end up re-buying. Staff and property lockers are volume and durability problems. An evidence locker is a custody problem: one-way deposit hardware, controlled retrieval, a documented transfer record. The steel looks similar in a catalog photo. The access design is not.


What is the difference between single-door and pass-through evidence lockers?


A single-door unit is deposited into and retrieved from the same face, so the whole control sits in the hardware and the key. A pass-through unit has a second door inside the secure property room, so the depositing officer never re-enters the storage side. It costs more and needs a wall opening.


Do evidence lockers need refrigeration?


Only where biological evidence is taken in. NIST Interagency Report 7928 has handlers hold wet items temporarily in a sealed impermeable container inside a refrigerator at 2 °C to 8 °C. If your intake never receives biological material, cold storage is a cost you can skip.


Who is responsible for the chain of custody record?


A named custodian, not the locker. NIST Interagency Report 7928 recommends assigning a custodian to prevent loss, premature destruction and preventable degradation, and having that person audit the property room. Hardware supports the record. It does not create it.


We have no state contract for lockers. How do we buy?


We confirm the path in writing before quoting. Depending on the buying office it may run through a GSA-registered partner vendor, TIPS contract 230701, a Department of Veterans Affairs channel, a state or county purchasing agreement, or a direct SDVOSB or Historically Underutilized Business Zone (HUBZone) set-aside. Eligibility is not a guarantee of award.


Sourcing Lockers for an Intake Area, Property Room or Evidence Room?


Send us the three counts and the wall type. Email detention@SDVOSBmaterials.com or call (917) 216-9400. The category sits on the Justice, Health and Corrections division page, and you can reach us through our contact page. Say whether cold storage is in scope and we will separate the line items before quoting.


 
 
 

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