governing use of surnames, and the introduction of measures to bring more women into politics. The voting age was lowered from 21 to 18, the age of eligibility for political office was lowered to 21, and the age of majority was lowered to 18 in March 1974. The Third Law for the Liberalization of the Penal Code (1970) liberalised "the right to political demonstration", while equal rights were granted to illegitimate children that same year. A 1971 amendment to a federal civil service reform bill enabled fathers to apply for part-time civil service work. In 1971, corporal punishment was banned in schools, and that same year a new Highway Code was introduced. In 1973, a measure was introduced that facilitated the adoption of young children by reducing the minimum age for adoptive parents from 35 to 25. A women's policy machinery at the national level was established in 1972 while amnesty was guaranteed in minor offences connected with demonstrations. From 1970 onwards, parents as well as landlords were no longer legally prohibited "to give or rent rooms or flats to unmarried couples or to allow them to stay overnight". In October 1972, the legal aid system was improved with the compensation paid to private lawyers for legal services to the poor increased. The Bausparkassen Act of 1972 placed all Bausparkassen (from January 1974 onwards) under the supervision of the Federal Banking Supervisory Office, and confined Bausparkassen "to the contract saving business and related activities". The Animal Protection Act, passed in 1972, introduced various safeguards for animals such as not permitting the causing of pain, injury, or suffering to an animal without justification, and limiting experiments to the minimum number of animals necessary. In 1971, rules were introduced making it possible for former guestworkers "to receive an unlimited residence permit after a five-year stay". Armed forces A number of reforms were also carried out to the armed forces, as characterised by a reduction in basic military training from 18 to 15 months, a reorganisation of education and training, and personnel and procurement procedures. Education for the troops was improved, a personnel reshuffle of top management in the Bundeswehr was carried out, academic education was mandated for officers beyond their basic military training, and a new recruiting policy for Bundeswehr personnel was introduced with the intention of building an army that reflected West Germany's pluralistic society. Defense Minister Helmut Schmidt led the