The article analiyses the relationships between decisions of the "Commissione di garanzia", which operates as regards strikes in essential public services - introduced by Act n. 146/1990 - and case-law on the powers of this Commission. Among the matters taken into particular consideration there are: the power to check collective agreements ability in balancing the right to strike with other personal rights guaranteed by the Constitution; the power to present proposals in the event of lack of collective agreements providing for indispensable services; the connection between these proposals and administrative injunctions to stop strikes; the power to promote application of sanctions against unions for breaches of the Act n. 146/90's provisions.