Employees of the Authority may be:

The foundational concept relates to the common methods of staffing public sector bodies or authorities. Public organizations often have flexibility in how they acquire personnel. Option A, "Appointed directly or borrowed on deputation," is accurate. Direct appointment refers to hiring new employees, while deputation involves temporarily transferring staff from other government departments, a common practice to leverage existing expertise.

• Option B, "Only appointed permanently," is too restrictive; temporary or contractual appointments are also common.
• Option C, "Hired only from Police," is incorrect; while police might be deputed for specific roles, it's not the sole source of all employees.
• Option D, "Taken from private companies," is generally not the primary method for staffing a public authority.