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Did You Know

See below for a list of ‘Did You Know’ articles relating to Forensics.

New Zealand was the second country in the world to establish a databank of DNA profiles.

Your DNA is unique from your brothers and sisters because trillions of different combinations of your parents DNA are possible.

Koalas have fingerprints that are almost indistinguishable from human fingerprints.

65,000 individual DNA profiles are stored in New Zealand's national DNA database and nearly 1000 new samples are added each month.

Identical twins have identical DNA profiles, because they develop from a single fertilized egg that splits into two.

You leave a trail behind you everywhere you go. The trail is made up of hairs, cells and body fluids.

DNA profiling has proven that an unusual bear shot in Canada's Northwest was actually a cross between a grizzly bear and a polar bear.

When feeling the texture of a surface the ridges in our skin, which are used for fingerprinting, heighten the intensity of stimulation of our nerve endings.

No two fingerprints have ever been found alike.

The ridged skin covering our palms and sole, used for fingerprinting or footprinting, is called dermatoglyphics.

The first criminal fingerprint identification was made in 1892 by Juan Vucetich; it proved that a mother had killed her sons.

Luminol is used at crime scenes to detect small amounts of blood, it reacts with iron in the haemoglobin and emits a blue light.

DNA profiling was recently used to identify the bodies of the Russian royal family who were murdered during the Russian Revolution in 1917.

DNA profiling was first performed by Sir Alec Jeffreys in England in 1984, and was introduced into New Zealand in the late 1980s.

DNA from a person's body, from their skin, blood, or saliva is always the same.

Soil samples from clothes can be matched to crime scenes by profiling the DNA of microbes in the soil.

Bare footprints are unique to an individual in the same way that fingerprints are.

DNA is often found on half-eaten snacks or drink cans left behind at house burglaries.

DNA has been found in 400,000 year old plants preserved in ice in Siberia.

The chance of a two people having an identical DNA profile is 1 in ten billion.

No two people (except for identical twins) have the same DNA profile.

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