FDDU Frequently Asked Questions

Forms/Samples 

How can I order Buccal Collection Kits? How much do they cost?

Please fill out a Buccal Collection Kit Reorder form. FDDU provides collection kits free of charge.

Can I make copies of the FD-936 in order to pre-fill out the forms?

No. Each kit contains its own FD-936 and must remain together throughout the entire process. It is imperative to fill out the FD-936 form with the offender’s information during the time of collection to ensure that the correct information is transcribed.

  • Fill out the FD-936 using Dark Blue or Black Ink Only. Be sure to write legibly.
  • It is acceptable to electronically transcribe the information.
  • If an error is made while filling out the form or collecting the DNA sample(s), please dispose of the entire kit and begin again with a new collection kit.
Why do some DNA samples have barcodes?

Collection kits beginning with a C, D, or E barcode (found on the outside of each kit's envelope as well as the FD-936 form and DNA sample card(s)/device), contain a unique barcode and must remain together throughout the entire process. These unique barcodes are used for tracking purposes upon arrival to the FDDU and must not be intermixed at any point in time.

Collection kits beginning with a B barcode (found on the outside of each kit's envelope) will not contain a unique barcode on the DNA samples. The offender’s name must be written on these cards to ensure a match between the sample and FD-936.

Can I use a stamp or sticker for the Submitting Agency Contact Information section?

Yes, a stamp/sticker with the appropriate information is acceptable as long as it does not obstruct the box marked "For Official Use Only" and is clear enough to be read.

If I am from a BOP and/or Probation District, how do I fill out the top of the FD-936 form from the kit beginning with a B barcode? (this can be found on the outside of each collection kit)

If the subject is a convicted offender, provide the BOP facility code and DNA Sequence Number (unique to each subject) or Probation District code. If the subject is pre-trial and facing criminal charges, check the Federal Arresting Agency box.

If I am using the FD-936 form with a B barcode (this can be found on the outside of each collection kit), which box do I check if the subject is facing criminal and immigration charges?

Please check the Federal Arresting Agency box.

How do I fill in the Agency Facility and Agency Reference Information section in section 2 on the FD-936 from the collection kit with a C, D or E barcode (these barcode numbers can be found on the outside envelope or on the FD-936 form?
  • ORI (Originating Agency Identifier):
    • Unique to each facility and does not pertain to the subject
    • This is the 9 digit FBI NCIC identifier assigned to your agency; it is a combination of letters and numbers, beginning with a 2 letter abbreviation for your state. If you are not sure about your agency’s unique identifier, please leave it blank.
  • Facility Code or District #: Only for BOP, USPO, or CSOSA agencies.
    • BOP: 3 character code, unique to each facility
    • USPO: 4 character code, unique to each facility
    • CSOSA: CSOSA
  • Agency Code:
    • The 3-4 letter abbreviation of the agency (ex: BOP, DEA, FBI, ICE, USMS, USPO, etc.)
    • This can be found on the Agency Abbreviations Form included inside in the kit

Questions Pertaining to the Subject 

I took the sample for casework comparison but used your kit and sent it to you. Can I get the sample back? What are my options?

The FDDU cannot return any sample. All submissions sent to the FDDU are property of the FDDU. Samples are not used for casework processing because they do not possess a chain of custody, making them inadmissible in court. Therefore, the FDDU samples cannot be transferred to the casework unit for processing as the Rules of Casework Evidence were not properly followed.

How can I find out if someone is in the database?

Please fill out a Sample Status Request form. The FDDU will e-mail you the result of your request to the email address you provide. Please note that we will only respond to inquiries from federal, law enforcement, or legal entities.

What do I do if the individual is no longer in my custody or at my facility?

If the subject is awaiting trial, the sample may be collected at a later date. If the subject is in custody with another agency, is at a BOP facility, or has been released from federal custody, document this information on the rejection notice and fax it to FDDU at (703) 632-7620 or email fddu@ic.fbi.gov.

I am from a state facility and I received a letter from BOP telling me to collect DNA from several individuals. They have provided your collection kit but I do not know what to do.
  • Please call the POC from the appropriate BOP facility to determine the BOP Facility Code and DNA Sequence number for the subject(s) to be collected.
  • Document this information on the FD-936 form. For steps on proper collection, return to FDDU’s main page and select the appropriate kit collection presentation to review.
  • Please call us with any questions on the FDDU main line at (703) 632-7529 or email fddu@ic.fbi.gov.

Rejects/Resubmissions 

I received a Rejection Notification. What does it mean? What do I do?

The kit provided to the FDDU could not be accepted and will not be uploaded to CODIS for the reason stated in the notification that you received. Please submit a completely new kit for that particular subject to the FDDU. In the new submission, complete the kit as before while making sure to correct the error that was provided on the notification.

When resubmitting my DNA sample, can I just send in the part of the kit that had the error (just the DNA sample or just the fingerprints)?

No. An entirely new kit must be submitted from the subject to include the FD-936 form, DNA collection cards, and fingerprints on the FD-936.

My sample rejection notification says the rejection reason is “DNA sample cards were not labeled with subject name or alternate unique identification #(e.g. FBI#).” What does that mean?

The DNA collection card was not labeled with the subject's name.

  • For the blue Easi-Collect collection device:
    • This can be done by removing the DNA sample card(s) from the collection device and filling in the subject's name in the area marked "Offender Name"
    • Once complete, ensure the subject's name and/or unique identifier matches the subject's name and/or unique identifier documented on the FD-936 form
    • Place the DNA sample card(s) back into the collection device for collection
  • For the gray BODE collection device:
    • This can be done by removing the device from the packaging and filling in the subject's name on the handle base in the area marked “Name”
    • Once complete, ensure the subject's name and /or unique identifier matches the subject's name and/or unique identifier documented on the FD-936 form
If my sample got rejected for “DNA sample cards were not labeled with subject name or alternate unique identification #(e.g. FBI#),"
  • Can you just write the name in for me?
    • No. The FDDU did not collect the sample and cannot ensure the integrity of the sample. A new kit must be submitted.
  • Can you send it back to me so that I can fill it in?
    • No. The FDDU cannot return samples to agencies and/or collectors. A new kit must be submitted.
  • “I can assure you that was the only kit I did that day and that DNA sample belongs to that individual.”
    • DNA collection cards must be properly labeled with the subject's name at the time of collection to ensure its integrity. A new kit must be submitted.
I received a Missing Information Notification. How do I respond?
  • Please fill out the Missing Information Notification form with the requested information and fax it to the FDDU at (703) 632-7620 or email fddu@ic.fbi.gov. The FDDU can be reached at (703) 632-7529 with any questions or concerns.

Common Mistakes to Avoid 

Not providing the subject's name on the DNA sample card.

The subject's name must be written on the DNA sample card(s) exactly how it is written on the FD-936 submission form.

  • For the blue collection devices:
    • This can be done by removing the DNA sample card(s) from the collection device and filling in the subject's name in the area marked "Offender Name"
    • Once complete, ensure the subject's name and/or unique identifier matches the subject's name and/or unique identifier documented on the FD-936
    • Place the DNA sample card(s) back into the collection device for collection
  • For the gray BODE collection device:
    • This can be done by removing the device from the packaging and filling in the subject's name on the handle based labeled appropriate area
    • Once complete, ensure the subject's name and /or unique identifier matches the subject's name and/or unique identifier documented on the FD-936
Not providing the subject's "Qualifying Reason."

When working with a B Barcode collection kit please check the appropriate box for the subject from which the sample is being collected from:

  • Check "Arresting Agency" if the subject is facing charges for a federal offense
  • Check "Detainee" if the subject is a non-United States citizen who is detained under the authority of the United States
  • Check "Other" if the subject has been convicted of a federal offense, SORNA, Tribal Authority, or federal offenses in US territories

When working a C, D, or E Barcode Collection Kit please write the appropriate letter in the designated box for the subject from which the sample is being collected from:

  • Place a "A" in the designated box if the subject is facing charges for a federal offense
  • Place a "C" in the designated box if the subject has been convicted of a federal offense or certain District of Columbia qualifying offense
  • Place a "D" in the designated box if the subject is a non-United States citizen who is detained under the authority of the United States
  • Place a "T" in the designated box if the subject has been convicted of a federal offense or SORNA under tribal authority
  • Place a "U" in the designated box if the subject has been convicted of a federal offense or SORNA in US territories
The tamper evident seal on the return envelope has not been properly sealed.
  • Remove the backing and seal it evenly 
  • Do not moisten the envelope seal with saliva to close
  • If the kit must be reopened after sealing, tape over the seal and initial and date over the new seal
All required components of the kit are not submitted.

A fully filled in FD-936 submission form, including the subject's fingerprints, and DNA sample(s) with the subject's name are required in order for the FDDU to accept the submission.

The DNA sample does not contain a sufficient amount of cheek cells to produce a full DNA profile of the subject.

Please reference proper collection techniques from our three DNA Kit Collection Instructions presentations.