4 9) in the case of persons suspected or convicted of an offence, for the purpose of identifying persons suspected of an offence, investigating offences and registering offenders, the personal descriptions laid down in Chapter 6, section 4(1) and (4) of the Coercive Measures Act, and the DNA profiles laid down in section 5 of the same Chapter, the video images and shoeprints of the person, information on the suspected offence, and information concerning registration and the classification of the person (personal description data); 10) information obtained, for the purpose of conducting and keeping a record of investigation and executive assistance duties, in a pre-trial investigation as referred to in the Pre-trial Investigation Act, in a police investigation as referred to in the Police Act, in connection with police action or executive assistance duties, or in connection with the application of the Coercive Measures Act (investigation and executive assistance data), as follows: a) on persons suspected of the offence, persons reporting the offence, witnesses, injured parties, and persons otherwise connected with the report of an offence; b) on the designations in reports of offences and in other reports, and on coercive measures, police action and the stages of pre-trial and police investigations; c) on other necessary descriptions, circumstances and particulars concerning a police duty, police action or an event; 11) in the case of investigation and executive assistance data, for the purpose of a document search from the police archive, the identification data concerning the report and the case, and a summary of the statement section (investigation and executive assistance archive data). Section 3 Data System for Administrative Matters