Any limited tax bonds issued pursuant to this chapter are a legal investment for all trust funds, for the funds of insurance companies, commercial and savings banks, and trust companies, and for state school funds. Whenever any money or funds may, by any law now or hereafter enacted, be invested in bonds of cities, cities and counties, counties, school districts, or other districts within the state, that money or funds may be invested in the bonds issued pursuant to this chapter. Whenever bonds of cities, cities and counties, counties, school districts, or other districts within this state may, by any law now or hereafter enacted, be used as security for the performance of any act or the deposit of any public moneys, the bonds issued pursuant to this chapter may be so used. The provisions of this chapter are in addition to all other laws relating to legal investments and shall be controlling as the latest expression of the Legislature with respect thereto.