“We have only one entrance; is one officer enough?” can be a misleading procurement question. It cannot be answered properly without specifying how many hours the entrance must be staffed. When reviewing a quotation for an Ankara business, first establish the assignment's coverage requirement, then examine the working arrangement that will deliver it.
Calculate coverage before headcount
Requiring one officer at a post at any given moment does not mean that the same employee works throughout the day. Coverage hours describe how long a defined assignment must be performed. Headcount concerns the people needed to provide that coverage under appropriate legal, rest and service conditions.
The 14 studies included in Wagstaff and Sigstad Lie's systematic review reported significant findings of adverse safety effects associated with long hours or shift arrangements. [1] These results across different sectors establish neither a universal security staffing multiplier nor legal working-hour rules for Türkiye.
A simple calculation makes the distinction visible
In an arithmetic example only, one officer continuously covering one post for seven days of twenty-four hours represents 168 officer-hours. Two separate posts requiring simultaneous coverage for eight hours on five weekdays represent 80 officer-hours. These are service requirements, not a roster or one person's working hours.
The total also fails to show when duties overlap. Spreading eighty hours across different periods may require a different resource arrangement from covering two posts at the same time. Show time periods and the number of simultaneous assignments together.
Separate recorded time from available post time
It may be incorrect to treat all of an employee's recorded working time as available at one post. Explain how breaks, handover, briefings, training, leave and other planned activities will be covered. Do not count the same time twice for a post and another assignment.
Once an appropriate amount of available post time per person has been established, dividing the overall requirement by that figure provides a rough capacity check. The result is not, by itself, a workable roster. Rest, simultaneous demand, competence and assignment conditions still require examination.
For example, a plan may contain enough total hours yet depend on the same person being available at two locations during a busy period. The arithmetic balances, but the arrangement does not. This is why a coverage calculation and a time-based roster should be reviewed as related, separate documents.
Ask four questions of the quotation
- At which posts, on which days and during which periods must how many people be working simultaneously?
- How will coverage continue during breaks and handover, and where are those periods included in the calculation?
- What assignment process will cover leave, training or unplanned absence?
- Who will review the proposed roster against applicable working and rest conditions?
HSE's shift-work guidance treats working patterns as part of risk assessment. [2] That professional approach is useful, but applicable Turkish working-time and legal conditions require their own review.
Understand the reason for different staffing figures
Two providers may propose different headcounts for the same site. First examine which duties and periods each proposal covers. More people do not automatically establish better service, and fewer do not automatically demonstrate efficiency. The difference may reflect different interpretations of scope or the omission of supporting time.
Keep the coverage requirement, assumptions about available post time and roster feasibility distinct in the decision file. The question of how many people are needed can then be answered through a checkable service arrangement rather than an unexplained number.



