To achieve the goals imposed by Security Council, UNMIK
Police has to modify their function going over three distinct
phases (report SG, 12 Jul 1999):

In
the first phase, KFOR will be responsible for ensuring public
safety and order until the international civil presence can take
responsibility for this task. Until the transfer of that
responsibility, UNMIK's civilian police will advise KFOR on
policing matters and establish liaison with local and
international counterparts. The special police units under UNMIK
control will also establish liaison with local and international
counterparts and protect United Nations installations, if
needed. UNMIK border police will advise KFOR units stationed at
the border.

In
the second phase, once UNMIK has taken over responsibility for
law and order from KFOR, UNMIK civilian police will carry out
normal police duties and will have executive law enforcement
authority. At that time, UNMIK civilian police will be armed. To
the extent that trained local police become available through
the police academy under UNMIK's institution-building component,
UNMIK civilian police will initiate on-the-job training,
advising and monitoring. UNMIK special police units will carry
out public order functions, such as crowd control and area
security. The special police units will also provide support for
UNMIK civilian police and protect UNMIK installations. At that
time, it would be preferable for any special police unit
previously under KFOR command to be transferred to UNMIK
authority so as to avoid two units with similar mandates in the
same theatre. The United Nations border police will ensure
compliance with immigration laws and other border regulations.
KFOR will continue to support UNMIK in these efforts, as
required.

In
the third phase, once properly trained and selected local police
in sufficient strength are available, UNMIK will transfer
responsibilities for law and order and border policing functions
to the Kosovo Police Service. At that time, UNMIK civilian and
border police will revert to training, advising and monitoring
functions. UNMIK special police units might still be needed as a
backup.