'He's not a cop,' says one retired chief, dismissively.

Two years ago, militants shot and killed Gen. Arun Vaidya, the retired chief of the army.

Jack Keane, a retired general and former Army vice chief of staff, said the trips had been "very limited" because of security concerns.

Lieutenant Dreyer handled a last-minute question from a retired chief, who wanted to know if the honor guard should arrange itself along the front railings.

For a leg endary, retired chief of the Israeli Mossad, there was no other way to go.

The biggest variable in an accident is the behavior of passengers, according to Matthew McCormick, a retired chief of the safety board's survival factors division.

Joe Trapchek was a retired chief of police in Seattle, Washington who came out of retirement to consult on cases.

Wesley, the retired chief of the FBI's profiling unit, went on.

The building, dating from the 1860s, originally housed a hand-drawn apparatus, according to Frank Kramer, the retired chief.

Hem Bahadur Singh is a retired chief of Nepal Police.