“All I have to do at this stage is to consider whether there is a reasonable prospect of the mother successfully appealing the order made by the Judge. I do not at the moment feel in a position to say that. I am, however, concerned there are doubts as to the veracity of the hair strand testing which have, to all intense purposes, determined the future of this baby.”
“Importantly also, it would appear when the hair strand test was taken that, contrary to good practice, either insufficient hair, or the manner in which the hair was taken, meant that it was not possible to do a second independent re-test: nor, it would appear, did FTAC adopt a procedure which is on offer from the hair strand testing company where by a hair strand test can be retested in the way that drink driving tests are re done where a party requests a second opinion.”
‘detecting no illegal substances’
“When an individual has regularly used a drug, stops and continues to abstain from using the drug it can take approximately 3 - 4 months for a person to return a ‘Not Detected’ result. This is due to the fact that at any one time approximately 15% of scalp hair is not actively growing. This resting hair can stay on the scalp for approximately 3 - 4 months before being shed. This resting hair would contain drugs that would have entered the hair during the period of drug use (Tsanaclis, 2007). When tests looking for a particular drug are performed on hair samples, where possible Lextox also test for its metabolites, which are found after using the drug, for example 11-nor-9-carboxy-delta-9-THC (cannabis) or benzoylecgonine (cocaine). The presence of a metabolite indicates drug usage. When the parent drug is detected but a metabolite is not present, there is no evidence that the drug has been metabolised by the body (Tsanaclis, 2007). Explanations for this finding could be due to low/infrequent usage or passive/environmental contamination. There are many factors that influence the amount of drugs in hair such as the purity of drug consumed, the effect of cosmetic hair treatment and individual variations to drug metabolism (Tsanaclis, 2007) (Skopp, Potsch, & Moeller, 1997) (Martins, Yegles, Thieme, & Wennig, 2008). Studies with individuals receiving the same dose showed substantially variable drug concentrations in hair (Henderson, 1993). Therefore, the levels of drug detected in the hair are best used as a guide to changes in use by the individual and not to the amount of drug consumed (Jurado, 2007).”
“Cocaine Stephen Edward Ramsay does not exclude cocaine use. This is based on the identification of benzoylecgonine at 0.07 and 0.13 ng/mg in the last 2 segments, higher than the 0.05 ng/mg recommended by the SoHT (2012). Cocaine, the parent drug was not detected. This is a complete misinterpretation of the SoHT guidelines (Table 1). To qualify for a positive, first, the parent cocaine must be above 0.5 ng/mg andthen its metabolites, benzoylecgonine or others (cocaethylene, norcocaine …) must be above 0.05 ng/mg. In the case of [M], no parent cocaine was found and therefore the result must be read negative.”
“There is no doubt that methamphetamine was detected in the hair of [M]”
“Professor Kintz was of the view that the 2016 results could not be as a result of usage in November 2015. He said if you take drugs in November 2015 you would have 100% result and decreasing incremental to 10%, then 1% and then 0. Hence, this could not account for the results seen in March and April 2016 as it is not possible. It takes 3-4 months for the results to be totally negative. Professor Kintz accepted in his evidence that when considering the earlier 2014/5 results from December 2014 to May 2015 which are results when [M] reported having taken drugs it is reported positive for methamphetamine but not for the metabolite amphetamine. He says this is why HST is only one part of the picture. With regards to the differing opinion of Professor Kintz and Mr Ramsay concerning the 2015 cocaine/benzoylecgonine results it is open to the Court to find that Mr Ramsay is more likely to be correct in his conclusion about cocaine having been ingested by [M] when taken together with other evidence.”
“As the case has developed that regime of urine testing leading to a block of unchallenged clear tests has provided crucial evidence to be placed into the equation when the court evaluates the scientific evidence and places it in the wider context. There is a period of overlap – whatever the length of that overlap may be – arising from the 7 week period when abstinence is confirmed by urine testing and the hair strand test returns a positive report. The import of that is to highlight that the hairstrand test alone cannot confirm use. So it is that when the mother submits that recognising – for example – the view of the experts in relation to the 2016 tests, the court must nevertheless look at the other evidence available to it, she does so not on the basis of wishful thinking but on the basis of other scientific evidence in this case which runs counter to the hair strand readings. In addition to the block testing, the mother has been subject the prospect of random (“unannounced”) testing from1 October 2016 to date. In fact, the LA has availed itself of this on only 4 occasions in the past 5 months, but on each occasion the mother, having received notification of the test on the morning of the same, has made herself available to give the requisite sample in supervised circumstances, and on no occasion have illicit drugs been detected.”
“ … it is quite clear that the test for severing the relationship between parent and child is very strict: only in exceptional circumstances and where motivated by overriding requirements pertaining to the child's welfare, in short, where nothing else will do”