Method for evaluation of a test strip with capture lines and control lines with a device containing an insert for a cassette with test strip, an optic portraying the image of the test strip in the test field of the device onto a receiver, reference fields, a receiving element with a CCD-matrix of pixels areally arranged on a level, a lighting for the test strip, evaluation electronics containing a microprocessor, containing an evaluation algorithm, a display, an energy supply and electrical interfaces as well as an output device, wherein for the evaluation of the test strip on which body-specific substances, in particular proteins released in a certain incident in the body, are detected with the help of labelled antibodies by means of test lines and control lines, the concentration of the labelled antibodies is determined by a colour change in a strip, wherein the colour intensity of the concentration of the antibodies per volume is proportional, the test strip is portrayed with the help of an optic on the CCD-Matrix of areally on one level arranged pixels as receiving element, wherein the intensity in certain discretely portrayable colour or grey levels is used for the evaluation and the relative discoloration is compared via calibration values deposited in the programme, wherein - the complete image of the test strip is portrayed on the CCD-Matrix, - the digital pixel information per colour or grey level in the microprocessor is portrayed in its intensity as a column per pixel, wherein the height of the column matches the intensity and these columns being portrayed next to one another on one level such that the distribution of the intensity over the test strip is portrayed as a surface profile, the sequence of height of which matches the course of intensity of the colour intensity received with the CCD-Matrix, - an evaluation algorithm is carried out, firstly finding the test strip by scans through the peaks running orthogonal to one another, defining an area defining the test strip as area to be detected and integrating over the colour value levels of all these pixels and calculating the average, - device-internal reference fields, having on the outer edges a field with a maximum and a field with a minimum colour intensity, a variable measurement reference field, colour reference fields in the RGB colours, and a peak detect reference field located on the optical object level of the device are recorded by the CCD-Matrix simultaneously with the image of the test strip with capture lines and control lines, wherein possible error and aging processes are eliminated by the reference fields, - the definition of an area for a white balance is carried out, being integrated and thereafter a difference being formed between the average and the white balance, - the numeric value of the formed difference being compared with calibration values deposited in a database and - the output of this comparison is provided as a measured value. - the complete image of the test strip is portrayed on the CCD-Matrix, - the digital pixel information per colour or grey level in the microprocessor is portrayed in its intensity as a column per pixel, wherein the height of the column matches the intensity and these columns being portrayed next to one another on one level such that the distribution of the intensity over the test strip is portrayed as a surface profile, the sequence of height of which matches the course of intensity of the colour intensity received with the CCD-Matrix, - an evaluation algorithm is carried out, firstly finding the test strip by scans through the peaks running orthogonal to one another, defining an area defining the test strip as area to be detected and integrating over the colour value levels of all these pixels and calculating the average, - device-internal reference fields, having on the outer edges a field with a maximum and a field with a minimum colour intensity, a variable measurement reference field, colour reference fields in the RGB colours, and a peak detect reference field located on the optical object level of the device are recorded by the CCD-Matrix simultaneously with the image of the test strip with capture lines and control lines, wherein possible error and aging processes are eliminated by the reference fields, - the definition of an area for a white balance is carried out, being integrated and thereafter a difference being formed between the average and the white balance, - the numeric value of the formed difference being compared with calibration values deposited in a database and - the output of this comparison is provided as a measured value.