Sean Gilman’s review published on Letterboxd :
So apparently this is Yes, Madam 4, after In the Line of Duty 3 was Yes, Madam 2, I don't know what happened to Yes, Madam 3. Anyway, Cynthia Khan returns (as a different character), playing a Hong Kong cop working with a couple of Seattle cops to capture drug dealers. One of the cops is a very young Donnie Yen, who gets a great cocky introduction and plays a dick for the first half of the movie. The other is Michael Wong, apparently back from the dead after Royal Warriors, again being obnoxious guy, but this time it works better because he's the bad guy. The first section of the film is ostensibly shot in Seattle, but it's pretty obviously Vancouver (I guess it had to be Seattle because the plot of the film positions the CIA as the villains, selling drugs to fund their covert activities in Nicaragua, balancing the left/right conspiracy axis after the left-wing Red Army terrorists of In the Line of Duty 3. Note that when the final villain gets it, he ends up draped in a giant American flag, albeit one that only has stars on one side).
The great Yuen Woo-ping directs, and as you'd expect the fight scenes are terrific. From a Yakima Canutt/Raiders of the Lost Ark homage with Khan on a truck, to a wild motorcycle chase with Donnie to a brutal elevator fight between Khan and Blonde Kickboxer Woman to the climactic showdown between Donnie and Muscly Black Guy. The film is thankfully shorn of 'girls can't be cops' police station scenes, though there is plenty of police brutality (especially from Donnie, who spends the first half of the film beating up Yuen Yat-chor (Woo-ping's brother and a choreographer himself), who would be his star witness if he'd stop menacing him long enough to listen).