@500N
not a problem. WRT to the individual in question, from what I understand, the MO is order your package, arrange collection/drop off and "deliver" to the target yourself (or via personal goon).
Again, from what I can gather, it's unlikely that the 'active ingredient' in the device is from a stockpile or undeclared sources. Easy enough to cook up something to make a pipe bomb or similar.
FWIW, the Ordinance guys (aka Bomb Squad) had, by the end of March 2014 been called out to 34 incidents at least 15 of which involved what where termed viable devices. In 2013 there were over 250 call outs, although a number did involve a rash of calls that involved unstable chemicals in school labs .... (nothing sinister, just out of date stuff that needed controlled disposal).
JAS