In the Line of Duty is a series of girls with guns feature films produced by Hong Kong movie studio D & B Films which star, in the first two, Michelle Yeoh and, in subsequent instalments, Cynthia Khan as a police officer who combines use of firearms with martial arts. The third was the first to use the In the Line of Duty title, retroactively applied to the two Michelle Yeoh vehicles.

Yes, Madam!

1985

Royal Warriors

1986

In the Line of Duty 3

1988

In the Line of Duty 4

1989

In the Line of Duty 5: Middle Man

1990

Forbidden Arsenal

1991

Sea Wolves

1991

A Serious Shock! Yes Madam!

1993

Yes Madam 5

1996