An elevator system (101, 201), comprising: a tension member support (237, 239, 300, 600) positioned within an elevator shaft (117, 217); a tension member (107, 207, 307, 407, 607) suspended from the tension member support (237, 239, 300, 600) within the elevator shaft (117, 217); and a slack detection system comprising: at least one biasing element (302, 402, 404, 602) housed within the tension member support (237, 239, 300, 600) and operably coupled to the tension member (107, 207, 307, 407, 607), the at least one biasing element (302, 402, 404, 602) arranged to receive a load from the tension member (107, 207, 307, 407, 607); and a switch arranged to be moved from a first position to a second position in response to movement of the at least one biasing element (302, 402, 404, 602), wherein, when in the second position, the switch triggers an emergency stop of an elevator car (103, 203) within the elevator shaft (117, 217), wherein the at least one biasing element (302, 402, 404, 602) comprises a first biasing element and a second biasing element, wherein the second biasing element is arranged to interact with the switch, and wherein both the first biasing element and the second biasing element are operably coupled to the tension member (107, 207, 307, 407, 607), characterized in that the second biasing element is positioned within the first biasing element, and in that the slack detection system further comprises a separation element positioned between the first biasing element and the second biasing element to prevent contact therebetween. a tension member support (237, 239, 300, 600) positioned within an elevator shaft (117, 217); a tension member (107, 207, 307, 407, 607) suspended from the tension member support (237, 239, 300, 600) within the elevator shaft (117, 217); and a slack detection system comprising: at least one biasing element (302, 402, 404, 602) housed within the tension member support (237, 239, 300, 600) and operably coupled to the tension member (107, 207, 307, 407, 607), the at least one biasing element (302, 402, 404, 602) arranged to receive a load from the tension member (107, 207, 307, 407, 607); and a switch arranged to be moved from a first position to a second position in response to movement of the at least one biasing element (302, 402, 404, 602), wherein, when in the second position, the switch triggers an emergency stop of an elevator car (103, 203) within the elevator shaft (117, 217), wherein the at least one biasing element (302, 402, 404, 602) comprises a first biasing element and a second biasing element, wherein the second biasing element is arranged to interact with the switch, and wherein both the first biasing element and the second biasing element are operably coupled to the tension member (107, 207, 307, 407, 607), characterized in that the second biasing element is positioned within the first biasing element, and in that the slack detection system further comprises a separation element positioned between the first biasing element and the second biasing element to prevent contact therebetween. at least one biasing element (302, 402, 404, 602) housed within the tension member support (237, 239, 300, 600) and operably coupled to the tension member (107, 207, 307, 407, 607), the at least one biasing element (302, 402, 404, 602) arranged to receive a load from the tension member (107, 207, 307, 407, 607); and a switch arranged to be moved from a first position to a second position in response to movement of the at least one biasing element (302, 402, 404, 602), wherein, when in the second position, the switch triggers an emergency stop of an elevator car (103, 203) within the elevator shaft (117, 217), wherein the at least one biasing element (302, 402, 404, 602) comprises a first biasing element and a second biasing element, wherein the second biasing element is arranged to interact with the switch, and wherein both the first biasing element and the second biasing element are operably coupled to the tension member (107, 207, 307, 407, 607), characterized in that the second biasing element is positioned within the first biasing element, and in that the slack detection system further comprises a separation element positioned between the first biasing element and the second biasing element to prevent contact therebetween.