Kim Kardashian Tells Cops Thieves Were a Bunch of Amateurs

Kim Kardashian's robbers were rank amateurs ... and it showed from start to finish.

Sources close to Kim tell TMZ ... she told cops the robbers were extremely hesitant and tentative ... whisking her in and out of the bathtub, pointing a gun at her head ... walking away and then pulling the gun again for no apparent reason.

We're also told it seemed to Kim that the robbers were arguing over how to pull off the heist. Remember ... the robbers only spoke French.

As for the robbers mimicking cops ... we're told not even close. The uniforms looked like they came from a Halloween store.

The thieves used a garden-variety backpack to carry the jewels out. But they were extremely careless ... a $33,000 necklace ended up on the street as they made their getaway. And they left zip ties and duct tape behind.

Still ... they got away with it -- for now.