Robbery suspects allegedly posed as undercover police

Here are some of the stories that KTLA News is planning for its 10 p.m. newscast on Channel 5:

POLICE IMPERSONATORS: Los Angeles Police Department detectives arrested three suspects who allegedly impersonated undercover police officers and robbed victims throughout the Los Angeles area.  A fourth woman got away. Police have her name and are searching for her.

MOBILE DUI CHECKPOINTS: Orange County sheriff's deputies will be staging DUI checkpoints tonight but rather than hunkering down in one place, they will be making the checkpoints mobile, hitting numerous locations throughout the county.