 discuss, using a recent example, how progress in analytical chemistry and changes i

[.ben]

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Is my dotopoint ok?doi need to add/take away anything?


"The advancement and changes in analytical technology have teh ability to affect the

outcomes of forensic investigations. This was clearly observed in the Azaria

Chamberlain case of the 1980s and 1990s.

On August 17, 1980, Azaria Chamberlain, a baby, was claimed to be taken by a dingo

in the Australian outback by her mother. Police were involved in an investigation

and found a stain on the front passenger seat of the Chamberlain's car. This stain

was identified as human blood with some sources alleging it to be foetal

haemoglobin, a substance present in infants up to six months of age. Subsequently,

both the Chamberlain parents were sentenced to gaol. However, over six years later,

it was discovered that tests performed on the sample blood were only initial tests

and that further tests were not conducted. In addition to this some substances

present in the blood could also have been present in outback dust.

This forensic case highlights the lack of technology at the time. For example, if

samples from the case had been stored and kept, today using current technology, a

forensic scientist could identify the source of the blood stain and convict or

acquit the Chamberlains with definitive evidence. Without this conclusive evidence,

doubt still remains over the case and we might never know what truly happened to

Azaria Chamberlain.

Today with advanced genetic technology we are generally safe from these types of

cases with the possibility of any murderers being acquited. New technology such as

genetic profiling, DNA fingerprinting and a recently discovered enzyme

phosphoglucomutase found in dried blood stains have allowed police to narrow down

potential suspects making them easier to find."


thanksyou

[Forbidden.]

Look through the past HSC Chemistry papers, and if you managed to coincidentally find a question that specifically asks for an answer and yours happens to fit, take a look at the lines given.

If the lines provided are more than/less than the response you provide here, re-word it to fit the lines, just make sure you dont force yourself to write off the paper.


Most importantly, it is best you remember as much as you can for the long term. In this case I assume you wrote this all from your brain.

[.ben]

mmm can't seem to find any queswtions.