The chief of police shall be in charge of the investigation of major criminal case.
The duties of positions in this series require moderate to arduous physical exertion involving walking and standing, use of firearms, and exposure to inclement weather. Manual dexterity with comparatively free motion of finger, wrist, elbow, shoulder, hip, and knee joints is required. Arms, hands, legs, and feet must be sufficiently intact and functioning in order that ap...

The chief of police shall be in charge of the investigation of major criminal case.
The duties of positions in this series require moderate to arduous physical exertion involving walking and standing, use of firearms, and exposure to inclement weather. Manual dexterity with comparatively free motion of finger, wrist, elbow, shoulder, hip, and knee joints is required. Arms, hands, legs, and feet must be sufficiently intact and functioning in order that applicants may perform the duties satisfactorily. Sufficiently good vision in each eye, with or without correction, is required to perform the duties satisfactorily. Near vision, corrective lenses permitted, must be sufficient to read printed material the size of typewritten characters. Hearing loss, as measured by an audiometer, must not exceed 35 decibels at 1000, 2000, and 3000 Hz levels. Since the duties of these positions are exacting and responsible, and involve activities under trying conditions, applicants must possess emotional and mental stability. Any physical condition that would cause the applicant to be a hazard to himself/herself, or others is disqualifying.
nvestigations involve extremely difficult, planning and coordination problems because of extensive jurisdictional investigations, many separate investigative matters of great scope and complexity grow from the original assignment; the interrelationship of fact and evidence is extremely difficult to establish in assignments; investigative assignments typically involve matters of extreme sensitivity; investigations problems involving other Federal, State, county, and local agencies. In duties such as undercover, surveillance, and protection assignments, the investigator serves as a key person or coordinator in work involving extremely complex, delicate or dangerous elements. Undercover work, for example, requires penetration of close-knit groups over extended periods of time as at the next lower level, however, here the investigator serves as a key person on assignments having most or all of the characteristics discussed above. Protection assignments involve leading and coordinating advance security surveys for the protection of principals who, because of their kind or level of position, are, for example, vital to the continuity of Government, and the national security, thus, receive this kind of advance protection before traveling or making public appearances. Such assignments require consulting in a lead capacity with high-ranking State, city, town and county officials, business and professional people, and officials of foreign governments. The investigator, as a key person and team leader, has full responsibility for directing surveys and investigations for judging how and when to take decisive and immediate action on all factors that are vital to the protection of the principals, and for coordinating the operations of large police, military and other details. Methods, techniques, and approaches to problems devised by the investigator often set patterns for subsequent investigations in similar areas and often are adopted for use by investigators in lower grades. Investigations at this level are planned and executed for the greatest possible deterrent impact. Thus, the investigator is responsible for devising breakthroughs in investigative approaches, techniques, and policies, as well as for completing assigned cases.
Assignments typically involve subjects on which information is readily available, cases that involve straightforward issues or persons that are not controversial; and routine exchanges of factual information with other agencies. Undercover and surveillance work involve a few hours of such activity under close watch by other investigators; and the risk of discovery or danger is slight, e.g., posing briefly as a doorman or elevator operator in a hotel or as a taxi driver.