A combined capability sensor comprising: a first laser source and a second laser source, the first laser source being configured to emit light having a wavelength in at least one of an infrared spectrum and a green/red spectrum and the second laser source being configured to emit light having a wavelength in a blue or ultraviolet spectrum; a fiber optic bundle comprising at least one emitter fiber and at least one detector fiber; a director configured to direct the light emitted by the first and second laser source (210, 220) to a detection zone, the director comprising a first dichroic filter arranged to receive the light emitted by the first laser source, a second dichroic filter arranged to receive the light emitted by the second laser source and a lens, with the first dichroic filter the second dichroic filter and the lens being linearly arranged, the first dichroic filter reflecting light having a wavelength in the at least one of the infrared spectrum and the green/red spectrum towards the lens and through the second dichroic filter, and the second dichroic filter reflecting light in the blue or ultraviolet wavelength towards the lens, the second dichroic filter passing light in the at least one of the infrared spectrum and the green/red spectrum emitted by the first laser source, the lens being configured to focus received light on at least one emitter fiber of the fiber optic bundle; a first sensor configured to detect via the at least one detector fiber scattered light originating from the first laser source, thereby detecting a presence of smoke in the detection zone; and a second sensor configured to detect via the at least one detector fiber fluoresced light emitted from a biological agent excited by the second laser source, thereby detecting a presence of a biological agent in the detection zone. a first laser source and a second laser source, the first laser source being configured to emit light having a wavelength in at least one of an infrared spectrum and a green/red spectrum and the second laser source being configured to emit light having a wavelength in a blue or ultraviolet spectrum; a fiber optic bundle comprising at least one emitter fiber and at least one detector fiber; a director configured to direct the light emitted by the first and second laser source (210, 220) to a detection zone, the director comprising a first dichroic filter arranged to receive the light emitted by the first laser source, a second dichroic filter arranged to receive the light emitted by the second laser source and a lens, with the first dichroic filter the second dichroic filter and the lens being linearly arranged, the first dichroic filter reflecting light having a wavelength in the at least one of the infrared spectrum and the green/red spectrum towards the lens and through the second dichroic filter, and the second dichroic filter reflecting light in the blue or ultraviolet wavelength towards the lens, the second dichroic filter passing light in the at least one of the infrared spectrum and the green/red spectrum emitted by the first laser source, the lens being configured to focus received light on at least one emitter fiber of the fiber optic bundle; a first sensor configured to detect via the at least one detector fiber scattered light originating from the first laser source, thereby detecting a presence of smoke in the detection zone; and a second sensor configured to detect via the at least one detector fiber fluoresced light emitted from a biological agent excited by the second laser source, thereby detecting a presence of a biological agent in the detection zone.