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What is the best test to do for
semen on clothing, cloth, or other items.
(select picture for larger image)
- What is the best test to do for semen on
ladies or children's panties or underwear? The most
accurate and sensitive collection is to take cuttings from the
sample and allow the stain to be extracted from the map of the
fiber.
 
It is important that the
samples shown on this page are dried at room temperature and stored in a paper
envelope (except fluids). If the sample cannot be sent immediately for
testing, please contact us for storage instructions.
- What is the best test to do for semen on male
underwear? The most accurate and sensitive collection is
to take cuttings from the sample and allow the stain to be
extracted from the map of the fiber.
- What is the best test to do for semen on
cuttings from panties or underwear? The most accurate
and sensitive collection is to take cuttings from the sample
and allow the stain to be extracted from the map of the
fiber.
- What is the best test to do for semen on tampons or feminine pads? These two items
differ greatly in they type of performed extraction. A
feminine pad is treated similar to a pair of panties while a
tampon is hydrated and the squeegee is tested.
- What is the best test to do for semen on
sheets or pillow cases? The most accurate and sensitive
collection is to take cuttings from the sample and allow the
stain to be extracted from the map of the fiber. Many
customers elect to order the non destructive test due to the
value of the linens.
- What is the best test to do for semen on a
condom? Customers have sent hundreds of condoms and most
skip the semen/sperm/saliva test. In many cases, that
was a bad decision. Many condoms are unused and are
moist from the lubricant providing the appearance of sexual
activity. Condoms are often used in pranks and may have male
or female DNA from handling even though no semen or sperm is
detected. Unless you are 100% sure the condom was worn
on the penis, you should have the semen/sperm/saliva detection
test performed prior to DNA extraction. The case below
illustrates a condom that tested negative for semen and
saliva.
- What is the most positive test outcome from
semen (cum) in my wife's panties? The following results
illustrate the highest test results possible.
_sperm_saliva_wife's_panties.jpg)
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- What is the best test to do for semen on Kleenex
tissue or Q'tips? The most accurate and sensitive method
is to send the entire sample to allow us to hydrate the sample for testing while preserving the integrity
for potential DNA profiling.
 
- What is the best test to do for semen on an
expensive blouse or suit? The most accurate and sensitive
collection is to take cuttings from the sample and allow the
stain to be extracted from the map of the fiber. Many
customers elect to order the non destructive test due to the
value of the item. We will evaluate the item for the
non-destructive test that you ordered and contact you prior to
testing if the destructive test is significantly
justified.
 
- What is the best test to do for semen on
cloth wash cloths or towels? The most accurate and sensitive
collection is to take cuttings from the sample and allow the
stain to be extracted from the map of the fiber. Due to the
size of the item, if you notice a specific questionable stain
you should highlight the periphery with a black or noticeable
marker. Please note that cloth wash cloths and towels
frequently have trouble providing a stable DNA profile due to
contamination and or bacteria growth (this will not effect the
detection of semen).
- What is the best test to do for semen on furniture
covers, seat cushions, or pillows? Due to the value of
these items, it is best to remove the cushion and allow us to
review the stain under special UV lighting. Our recommendations
will lean toward the non-destructive test if at all
possible.
- What is the best test to do for semen on
scrapings? Place the scrapings in the smallest paper
envelope possible. We receive many of these
samples scraped off the crotch of the ladies panties with a
razor or blade. We also receive wood and plastic
scrapings or shavings.
 
- What is the best test to do for semen on food
such as a pizza or a sandwich? If the stain is not
highly noticeable on the surface, we will hydrate the food
into a known concentration for testing.
 
- What is the best test to do for semen found
in a shower drain? We separate the semen from filter and
the hair strands. If the test is positive then the hair
may also be useful to determine the contributor(s).
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What is the best test to do for
suspected semen on a diaphragm? The amount of discharge
on the diaphragm dictates the method of collection or
extraction. A diaphragm covers the uterine cervix and
blocks the passage of sperm from the vagina into the rest of
the reproductive tract and normally is not over saturated as
compared to a male or female condom. This can normally
be tested for semen, sperm, and saliva in the same manor as an
IUD (intrauterine device).
- What is the best test to do for semen
collected on Scotch tape or masking tape? If possible do
not fold the tape over on itself. Stick the tape to a
piece of wax paper. We will dissolve the adhesive and
hydrate the sample for testing while preserving the integrity
for potential DNA profiling.
 
- What is the best test to do for semen that I
have spit back into a plastic bottle or can? If the
container can be tightly closed then send the entire product
in to be centrifuged. If is is not possible to close the
item, pour the contents through a new coffee filter (pour
slowly as close to the bottom of the filter as
possible). Dry the filter in the open position at room
temperature then send the filter paper in.
- What is the best test to do for semen on a
makeup applicator such as a blush pad? Depending on the
size of the applicator, we normally shave the surface fibers
off of the applicator for testing.
- What is the best test to do for semen on
carpet? The most accurate and sensitive
collection is to take cuttings from the sample and allow the
stain to be extracted from the map of the fiber. Wear latex
gloves when handling and cut the stained portion off using a
single edge razor blade and place in a new paper
envelope. Tape the envelope shut. Please note that
carpet fibers frequently have trouble providing a stable DNA
profile due to contamination (this will not effect the
detection of semen).
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What is the best test to detect semen in
soft drinks or juices? Testing fluids (other than water)
is highly intricate. SSDI can detect less than 2
ng (one billionth of a gram) per ml (milliliter) of semen in fluids. That equates to
less than 1µl (microliter) in a standard
water, coke, or juice bottle. The average ejaculation will vary
widely between men and may contain between 0.1 and 10
milliliters (100 to 10,000 µl). A teaspoon is 5000 µl and a tablespoon
is 15,000 µl. Here is a illustration of 1µl as metered
dye from a GeneMate .1µl-2µl calibrated pipettor placed on a
DNA storage card (FTA) as compared to one drop of dye from a
standard eyedropper. SSDI can detect 1µl of semen in a
bottle or can of soda, water, juice, or beer.
The most important issue in dealing with soft
drinks and juices is establishing the pH so that it does not destroy
the gold labeled anti murine antibody complex in the
immunochromatographic strip test. Our proprietary process
includes an array of control standards and unique devices such as
the 15 mL conical tube spin baskets we manufacturer for the
centrifuge (not available for resale).
These fluids tested positive for human saliva and
negative for semen.
Order your test by selecting this
link.
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