Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
protective [prəˈtɛktɪv] adj (clothing, layer, gesture etc) защи́тный; (person) покрови́тельственный
protective custody (LAW) опе́ка
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.