Case No. EWFC-57

[2019] EWCA Civ 575, Jackson LJ clarified the test for identifying the pool of perpetrators. Jackson LJ set his analysis at paragraphs 46 to 49 as follows:“Drawing matters together, it can be seen that the concept of a pool of perpetrators seeks to strike a fair balance between the rights of the individual, including those of the child, and the importance of child protection. It is a means of satisfying the attributable threshold condition that only arises where the court is satisfied that there has been significant harm arising from (in shorthand) ill-treatment and where the only 'unknown' is which of a number of persons is responsible. So, to state the obvious, the concept of the pool does not arise at all in the normal run of cases where the relevant allegation can be proved to the civil standard against an individual or individuals in the normal way. Nor does it arise where only one person could possibly be responsible. In that event, the allegation is either proved or it is not. There is no room for a finding of fact on the basis of 'real possibility', still less on the basis of suspicion. There is no such thing as a pool of one. The concept of the pool of perpetrators should therefore, as was said in Lancashire, encroach only to the minimum extent necessary upon the general principles underpinning s.31(2). Centrally, it does not alter the general rule on the burden of proof. Where there are a number of people who might have caused the harm, it is for the local authority to show that in relation to each of them there is a real possibility that they did. No one can be placed into the pool unless that has been shown. This is why it is always misleading to refer to 'exclusion from the pool': see Re S-B at [43]. Approaching matters in that way risks, as Baroness Hale said, reversing the burden of proof. To guard against that risk, I would suggest that a change of language may be helpful. The court should first consider whether there is a 'list' of people who had the opportunity to cause the injury. It should then consider whether it can identify the actual perpetrator on the balance of probability and should seek, but not strain, to do so: Re D (Children) [2009] EWCA Civ 472 at [12]. Only if it cannot identify the perpetrator to the civil standard of proof should it go on to ask in respect of those on the list: "Is there a likelihood or real possibility that A or B or C was the perpetrator or a perpetrator of the inflicted injuries?" Only if there is should A or B or C be placed into the 'pool'”. 18.I have also reminded myself of the recent decision in