Some local Serbs who served in the security forces have doffed uniforms but kept weapons.

ECONOMIST: Who controls Kosovo?

But when reports emerged yesterday that armed men in commando uniforms had raided a Baghdad security company in broad daylight and removed 50 employees, General Ahmed assumed it might just be renegade police.

NPR: Iraq Tries to Rein in Renegade Police Forces

According to Iran's Students News Agency, the kidnappers were wearing uniforms similar to those of Iraqi security forces.

CNN: Kidnapped Iranian diplomat released in Iraq

They did not run, fearing to attract attention, and all the while not knowing who were the security forces and who were militants, as the kidnappers had dressed in uniforms.

BBC: Algeria crisis: UK hostages speak of ordeal