Another suggestive letter from the National Directorate in Lisbon, this one 
dated 18 May 2007, in which it states that the British authorities have 
advocated the phone surveillance of Luis Antonio in order to assess his possible 
involvement or knowledge of the events of 3 May 2007. 

Again the Directorate ventures to suggest obtaining the relevant legal authority 
to obtain past call history for, and to monitor future calls on two telephones, 
and politely leaves the appropriate actions to be taken up to the consideration 
and determination of the Coordinator of the Investigation.

i.e. confirmation notes by MoPo on having seen the National Directorate suggestions, along with  the placement of phone surveillance –