Marine Security (MARSEC) requires that ships carry a designated vessel security officer and that this person be responsible for the ship's security plan. It is expected that the security officer will be a senior deck officer who has a responsibility for ＿＿（56）＿＿ . The responsibilities include developing the ship's security plan, ensuring appropriate ＿＿（57）＿＿ training being provided for officers and crew, ensuring that the ship ＿＿（58）＿＿ the security plan, and maintaining knowledge relating to international laws, ＿＿（59）＿＿ regulations, current security threats and patterns relating to security issues. The ship's security officer is to act as a ＿＿（60）＿＿ between the ship, relevant authorities and the company's security officer. Typically this individual would be involved with undertaking risk assessments, developing strategies and evaluating points of vulnerability.