This article provides for an analysis of legal aspects of certain particular investment processes within technical infrastructure in the Polish regions (voivodeships, but in the counties and communes as well). Those mentioned investments are undertaken in the areas of roads, railroads, airports and telecommunication. The impact of the investments is crucial in terms of the socio-economic development of the modern state and society. All dilemmas in terms of the mentioned investments’ management are related to legal regulations imposed by the state. It is noteworthy that those special regulations are aimed at organising the investment process in an efficient and adequately speedy way. Those regulations provide for a broad legal environment of business within the infrastructure investments. All of those regulations are necessary in order to push the continuous progress of the Polish regions targeting at reacting the level of socio-economic development of the so-called western countries (old, early members of the EU).