Report of the Interception of Communications Commissioner - March 2015
Figure 4 Breakdown of Interception Errors
stored communication
acquired w/o
lawful authority
implementation of warrant
7
%
no lawful
authority
8%
excess
data
2%
unauthorised selection /
examination
5%
13%
safeguards
breaches
36%
incorrect
communications
address
17%
8%
8%
7%
25%
incorrect
dissemination
over-collection
unauthorised
disclosure
failure to
cancel interception
6.81 Through our audits we have in a number of specific cases recommended that
interception warrants should be modified or cancelled, we have required changes to
operational practices or procedures to safeguard privacy, or have required additional
information to be provided to the Secretary of State or Senior Official in submissions.
More broadly the recommendations made in relation to the application process have
improved compliance and the clarity and quality of the necessity and proportionality
justifications. Those made in relation to the section 15/16 safeguards have strengthened
or tightened a number of the procedures for the retention, storage, dissemination and
destruction of the intercepted material or related communications data.
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