There is a continuing need for vigilance and the public should report any suspicious activity to the police.
Citizens have been asked to report to the secret police if they see foreigners engAged in suspicious activity.
Ship owners who pay ransoms that are reimbursed by insurance groups are not obliged to file a suspicious activity report with the Serious and Organised Crime Agency.
Authorities in some countries have struggled to cope with a deluge of so-called suspicious activity reports by Banks and other institutions.
It may also find application in security applications such as video surveillance, where it would be looking for images of suspicious activity.
People have told me that, on reflection they had noticed some suspicious activity, such as a member of staff acting oddly immediately before the kidnap, but it's hard to make those connections.
