Investigatory Powers Commissioner’s Annual Report 2019
Figure 24: MI5 errors by type, 2017 to 2019
60
50
40
30
20
10
0
Bulk personal
data
Comms data
(reportable)
Covert human
intelligence
source
Directed
surveillance
Equipment
interference
Interception
Property
interference
2017
3
0
4
11
0
11
7
2018
1
37
3
8
0
22
4
2019
14
55
5
13
1
23
6
Figure 25: Secret Intelligence Service (SIS) errors by type, 2017 to 2019
12
10
8
6
4
2
0
Bulk personal
data
Comms data
(reportable)
Covert human
intelligence
source
Directed
surveillance
Equipment
interference
Interception
2017
1
0
10
1
0
3
2018
0
0
3
0
0
1
2019
10
1
9
0
3
4
127
Select target paragraph3