“17. For the above reasons, the SFO believes that the only appropriate approach is to (a) apportion 50% of the total costs to date to the RT Actions, and (b) then approach the costs of the RT Actions on a joint and several basis between RT and R20. This is because it is impossible to attribute costs to either of the RT Claimants solely so to do otherwise would ignore the reality of the conduct of this litigation to date. This is save for the expert costs, in relation to which, out of the£190,000 estimated to relate to the RT Claimants (see paragraph 11(d) above), the experts estimate that£38,000 is attributable to R20 alone. 18. Applying this approach to the costs in the Schedule …: (a) Costs to end February 2014 are£8.130m . (b) Given the de minimis amount of expert costs attributable to R20 alone (£38,000 ), for present purposes I have excluded the entirety of the expert costs (£0.501m ), giving£7.629m . (c) I have then deducted the costs received to date (£59,286.75 ) as set out in Part 3 of the Costs Schedule. This gives a total of£7.569m as between both the RT and VT Claimants. (d) Of this, 50% is attributable to the RT Claimants. This gives a figure of£3.785m . (e) If 65% is awarded by way of security, this gives a figure of£2.460m , which with VAT at 20% gives a total of£2.952m , which the SFO believes is properly attributable to the RT Claimants on a joint and several basis for the reasons set out above. For the avoidance of doubt, the Costs Schedule is not a complete analysis of the SFO’s past costs, since some additional costs have been incurred by the SFO directly and, therefore, have not been reflected in my firm's bills. The SFO does not seek security in relation to those costs, but reserves all its rights to recover in relation to them at the appropriate time.”