Terrorist Asset-Freezing etc. Bill [HL]

I have profound regard and respect for the noble Lord, Lord Carlile of Berriew, but I am concerned at this stage not with whether the authority should be exercised administratively, executively or judicially, but with what the boundary of criminality is exactly in relation to the meaning of the words, "““that the person is or has been involved in terrorist activity””." My simple question is: does that possibly encompass a person who is a principal either in the first or the second degree, or a person who aids, abets, counsels or procures? In other words, does it extend that very considerable boundary of criminality, and if so, to what extent?