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Acceptable Forensic  Samples

The following prices are for DNA extraction from each special sample (per person) 
and are in addition to the cost of the DNA comparison test (paternity, maternity, 
grandpaternity, sibling, paternally related YPLEX etc).

Samples should only be stored in a paper envelope or paper bag.
Any additional instructions will be supplied upon ordering.

Our excellent team of scientists will do everything possible to extract DNA from any special sample.  Multiple attempts 
are made and all resources are utilized to ensure your test has undergone all possible strategies for DNA extraction.  If 
extraction failure occurs, an additional sample may be sent of equal or less value, at no additional cost if your test is for 
paternity or maternity.  If DNA cannot be obtained from either sample due to the sample conditions or lack of DNA, no 
refund is applicable.  
We would not list these sources of DNA unless our laboratory is highly successful in DNA extraction. 

If your special sample is being provided for a non-relation test such as infidelity, 
the cost for the special sample extraction is $80.00 more due to an ISO17025 standard that 
requires that 2 additional controls be performed on every non-standard sample.  
Please add this to your order in the other services category below.

Other Services

Please allow additional time for processing special samples

See the infidelity page for additional semen and sperm tests.

Click here for a one page printable version (pdf) 

Excellent Samples These are the ones to obtain.

Per Person

Self-made cheek swab (buccal cell) DNA Collection Kit
$0.00

No waiting for a paternity test kit to arrive, no concerns about discreet receipt of a test kit at your home or office

Instructions

FTA Classic Card
$17.95

The FTA Card is the best collection method for long-term storage of DNA.  Containing no reference to DNA, this card can be used to simulate an allergy or other type of test.  More information is available at this link.

Whole Blood
$240.00

Whole blood works very well if it has been properly collected in a vacutainer tube with the appropriate preservative (yellow capped tubes are best, though any will work).  The test works best if the sample is recent; blood that is not sent to the lab immediately should be refrigerated.

Cord Blood
$240.00

Taken at birth.  Cord blood works very well if received in good condition.

Bloodstains
$240.00

Properly collected bloodstains on standard blood collection cards work well and usually require no additional time to process; bloodstains on clothing and other materials can also be used.   

Sperm (Semen)
$300.00

If you are not sending within a few days, keep frozen.  Collect in Kleenex or container.  Avoid touching directly.

Toenail or Fingernail Clippings
$300.00

Clean the clippers with Isopropyl alcohol and collect several in a tissue without touching.  These require an additional 4-5 days to extract but work well most of the time.

Amniotic Fluid
$300.00

Taken past 14 weeks gestation.

Chorionic Villus Sampling
$360.00

Taken between 9 - 12 weeks gestation.

Fetal Tissue 
(Products of Conception)
$360.00

Taken on miscarriages or terminations.  Fetal tissue is an excellent source of DNA if it has not been exposed to formalin.  

Good Samples These work most of the time.  

Chewed Chewing Gum 
$240.00

Well chewed chewing gum works very well.  Wrigley Juicy Fruit has been found to work best.  Provide several samples of different types of gum if possible.

Cigarette Butts
$240.00

Make sure the person is not a "dry smoker" (one who never gets his butt wet or hangs the cigarette butt from his lips).  Brown filter end usually means that DNA can be obtained.  Provide up to 6 butts for multiple attempts if necessary.

Hard Candy 
$300.00

Hard candy such as a lollipop will usually work as long as it has been sucked on for a while.  Provide multiple pieces if possible.

Used Condom
$300.00

Condoms can work well if refrigerated after use and sent for analysis immediately.  

Semen Stains On Clothing
$300.00

Semen (Sperm) is a good source of DNA.  

Used Tampons or
Used Feminine Pads
$240.00

Blood on a tampon or feminine pad is an excellent source of DNA.  

Sweaty Hat or Ball Cap
$300.00

A good sweat stained hat or ball cap usually works as long as it has not been washed.  Leather hats require additional time for processing

Hocked Loogie
$300.00

It sounds disgusting, however a large wad of mucus from a person not infected (cold, flu, fever) can be a good source of DNA.

Plucked Hair
$240.00

Hair that has been pulled from the body with enough force to remove living tissue. Send 3 to10 strands, each with tissue attached are required.  

Q-tips with earwax
$300.00

Provide up to 3 swabs with earwax from the same person. Place in a new envelope.

Snotty Kleenexes
$300.00

Used tissues full of mucus usually work well if the person does not have an infection (cold, flu, fever).

Urine
$300.00

Urine can work very well if it is collected in a sterile container and always kept refrigerated.  At least 50 ml is required.  

Electric Razor Debris
$240.00

The contents of an electric shaver can be a good source of DNA.  The key to the extraction is to inspect the razor debris for white or light tipped hair follicles.  Newer razors may be too efficient to snag or pull the hair out.  DNA for paternity testing is only found in the hair follicle.

Marginal  Samples These samples can work but are not the best choice  

Cups, Cans, Bottles & Glasses
$300.00

Soda or beer cans work about 80% of the time.  Tippy cups and water bottles work about 85% of the time.  Drain any remaining fluid in the can by punching a hole in the bottom.  Let dry and send in as soon as possible in an envelope.  Two items from the same person can be provided with each order.

Eating Utensils
$300.00

Spoons and forks work about 75% of the time when licked clean.  Allow to dry at room temperature and place in clean paper envelope.

Drinking Straw
$300.00

Straws work about 60% of the time. Noticeable chewing of the straw improves the chances.  Sugarless drinks also improve the chance of successful extraction.  Allow to dry at room temperature and place up to 3 straws from the same person (per order) in a clean paper envelope.

Unknown Stain
$300.00

Stain of unknown origin, suspected of being slobber, semen, menstrual, blood, or mucus. 

Pacifier or teething ring
$300.00

Do not handle directly and store in a paper envelope or bag.  Contamination due to handling is the most likely cause of failure. 

Envelope or Stamp 
(Glue strip)
$300.00

DNA extraction is successful on 66% of these tests.  Storage in humid conditions will reduce the chance of a successful extraction with a clean DNA profile.

Paraffin Blocks Tissue
$480.00

Paraffin block tissue sample works 50% of the time if the formalin used in preservation is kept to 10% or less and fixed in under 4 hours.  A pathologist's sample normally works and a coroner's sample frequently fails. 

Teeth or Bone
$480.00

Teeth require extra time to process and work 80% of the time.  The enamel and calcium must be completely dissolved prior to DNA extraction.  Exhumed specimens collected from the marrow taken from the large leg bone (femur) will work approximately 75% of the time. 

Tissue
$480.00

Exhumed specimens collected from deep thigh tissue will work approximately 75% of the time.  Additional time to process required (possibly weeks).  Biopsy tissue works 90% of the time (based on length in formalin). 

Dried Umbilical Cords
$360.00

Dried umbilical cords work approximately 50% of the time and may take several weeks to test.

Fecal Matter
$360.00

Fecal matter is almost entirely composed of bacteria.  You must freeze fecal matter immediately (at least within 12 hours) and keep frozen until you send it in.  Fecal matter that is not immediately frozen will not work.

Toothbrush
$360.00

Toothbrushes work approximately 50% of the time,  they are usually rinsed  after use, which washes off the DNA.

Other Services  

Non-relational 
special sample
$80.00

Add this charge if your special sample extraction is not for paternity, maternity, grandpaternity, siblings, or YPLEX paternal line (i.e. uncle/nephew).

Post Mortem Coordination
$50.00

DTC will coordinate the release of a special sample from the Pathologist, Coroner, Doctor, or Hospital.  This can be ordered prior to any DNA extraction order.

Report Review
$50.00

DTC will review any laboratory's DNA report for clarification or compatibility.

PhD Consultation
$50.00

We provide full free support including affidavits for legal cases.  PhD consultation is sometimes required prior to an order or when a laboratory director testimony is required for a complicated legal case.  The charge is $50 per 15 minutes.

Overnight FedEx
(express envelope)
$20.00

Many Pathologists, Coroners, Doctors, or Hospitals require prepaid shippers to overnight the sample for DNA extraction.  The shipper is provided by DNA Testing Centre. 

Overnight FedEx
(diagnostic pack)
$25.00

Many Pathologists, Coroners, Doctors, or Hospitals require prepaid shippers to overnight the sample for DNA extraction.  The shipper is provided by DNA Testing Centre. 

Synopsis report comparing 1 or more special extraction
$100.00

This feature is required if you are performing an extraction of one or more samples to receive a detailed report comparing the DNA from each extraction.  This applies to all non-standard testing.

 

 

 

 

 

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