An inspection apparatus for inspecting side walls and cap heads of containers, comprising: - a linear conveyor for transporting the containers along a linear transport path, and - a plurality of inspection stations (4A-4D) arranged along the linear transport path wherein the inspection stations (4A-4D) for inspecting side walls are formed with a lighting unit for illuminating a container to be inspected on one side of the transport path and with a first camera and a mirror assembly for detecting multiple sides of the illuminated container on an opposite side of the transport path, wherein the mirror assembly comprises a plurality of deflecting mirrors (43a -43e) for forming at least two beam paths (S 1, S 2) into the first camera each imaging one side of the illuminated container, wherein the inspection stations (4A -4D) are each formed with a second camera for inspection of cap heads of containers, the second camera being integrated into the associated mirror assembly and wherein the second camera and the associated mirror assembly share a common support structure and/or a common housing, wherein the second camera is arranged to be oriented with its viewing direction (S 3) through a window of the mirror assembly obliquely down onto an opening surface of a cap head of the container to be inspected so that the second camera is oriented towards the container to be inspected and directed onto the opening surface and into the cap head, wherein the second camera is arranged such that its viewing direction (S 3) and the opening surface of the cap head to be inspected enclose an angle in a range between 25° and 55°, and wherein the viewing direction (S 3) of the second camera is directed towards a continuous light emission surface of the lighting unit for illuminating the containers in order to inspect the side walls and the cap heads. - a linear conveyor for transporting the containers along a linear transport path, and - a plurality of inspection stations (4A-4D) arranged along the linear transport path wherein the inspection stations (4A-4D) for inspecting side walls are formed with a lighting unit for illuminating a container to be inspected on one side of the transport path and with a first camera and a mirror assembly for detecting multiple sides of the illuminated container on an opposite side of the transport path, wherein the mirror assembly comprises a plurality of deflecting mirrors (43a -43e) for forming at least two beam paths (S 1, S 2) into the first camera each imaging one side of the illuminated container, wherein the inspection stations (4A -4D) are each formed with a second camera for inspection of cap heads of containers, the second camera being integrated into the associated mirror assembly and wherein the second camera and the associated mirror assembly share a common support structure and/or a common housing, wherein the second camera is arranged to be oriented with its viewing direction (S 3) through a window of the mirror assembly obliquely down onto an opening surface of a cap head of the container to be inspected so that the second camera is oriented towards the container to be inspected and directed onto the opening surface and into the cap head, wherein the second camera is arranged such that its viewing direction (S 3) and the opening surface of the cap head to be inspected enclose an angle in a range between 25° and 55°, and wherein the viewing direction (S 3) of the second camera is directed towards a continuous light emission surface of the lighting unit for illuminating the containers in order to inspect the side walls and the cap heads.