WASHINGTON, Oct. 22  A pair of new reports have delivered scorching judgments about the State Department’s performance in overseeing work done by the private companies that the government relies on increasingly in Iraq and Afghanistan to carry out delicate security work and other missions.

A State Department review of its own security practices in Iraq assails the department for poor coordination, communication, oversight and accountability involving armed security companies like Blackwater USA, according to people who have been briefed on the report. In addition to Blackwater, the State Department’s two other security contractors in Iraq are DynCorp International and Triple Canopy.

At the same time, a government audit expected to be released Tuesday says that records documenting the work of DynCorp International, the State Department’s largest contractor, are in such disarray that the department cannot say “specifically what it received” for most of the $1.2 billion it has paid the company since 2004 to train the police in Iraq.

The review of security practices was ordered last month by Secretary of State Condoleezza Rice, and it did not address the Sept. 16 shooting involving Blackwater guards, which Iraqi investigators said killed 17 Iraqis. The Federal Bureau of Investigation is leading a separate inquiry into that episode.