![NSW's highly competitive selective school entry test is under review.](http://web.archive.org./web/20180114164311im_/https://www.fairfaxstatic.com.au/content/dam/images/g/x/d/p/2/s/image.related.square.80x75.h0h5up.10rdjm.png/1515947914275.jpg)
![Mr Herd demonstrates the use of a poli light to examine fingerprints on a can of soft drink.](http://web.archive.org./web/20180114164311im_/https://www.fairfaxstatic.com.au/content/dam/images/g/z/w/a/y/l/image.related.square.80x75.gzxlxn.11w2dh.png/1515850938268.jpg)
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