The fourth film in the long running British comedy series, Constable sees Sid James making his Carry On debut as Sergeant Frank Wilkins, whose police station has been hit by a flu epidemic leaving him relying on rookie officers to make up the numbers. Fresh from training college, PC Charlie Constable (Kenneth Connor), PC Timothy Gorse (Charles Hawtrey), PC Stanley Benson (Kenneth Williams) and PC Tom Potter (Leslie Phillips) make a series of blunders that look likely to result in Sgt Wilkins' transfer to another station. In order to make up for their mistakes, the four newbies attempt to track down and arrest a tough gang of thieves they believe to be holed up somewhere nearby.
Constable sees little bit of cheeky innuendo ('You stupid constable!, 'I've lost my pussy') and gratuitous bare flesh (four bare male backsides and Shirley Eaton in her underwear) creeping into the Carry On formula, making this one a stepping stone between the more gentle comedy of the earlier films and the more ribald humour of latter entries. For much of the running time, though, the film is simply good-natured knockabout fun, consisting of a series of amusing episodic scenes, with a little romance thrown in for good measure, the whole thing coming together for a predictable feel-good ending designed to leave the viewer with a warm glow. As always, the likable cast put in winning performances, and as silly as it all undeniably gets, it's hard not to have a reasonably good time.