Light-sensitive silver halide photographic material

A light-sensitive silver halide photographic material having a support and at least a silver halide emulsion layer coated thereon, said material containing a development inhibitor releasing compound which forms substantially a colorless compound and simultaneously releases a development inhibitor on reaction with an oxidation product of a color developing agent and has the following formula:

• ##STR5## wherein A represents a sulfur or selenium atom;
• ##STR6## radical, wherein R.sub.1 represents (1) a saturated or unsaturated aliphatic radical having up to 18 carbon atoms, (2) an aryl radical selected from the group consisting of phenyl and naphthyl, or (3) a 5-6 membered heterocyclic radical, and (4) two of R.sub.1 can form together a 5-6 membered heterocyclic ring;
• R represents (1) an alkyl radical having up to 18 carbon atoms, (2) an aryl radical selected from the group consisting of phenyl and naphthyl, (3) a 5-6 membered heterocyclic radical, (4) a -A-Y radical, (5) a halogen atom, or (6) a -O-W radical, wherein W represents an alkyl radical having up to 5 carbon atoms, an aryl radical selected from the group of a phenyl and naphthyl, a lower acyl radical having up to 5 carbon atoms or a 5-6 membered heterocyclic radical;
• Z represents a halogen atom;
• Y represents a radical forming a development inhibitor with the sulfur or selenium atom and is selected from the group consisting of a heterocyclic mercapto compound, an aromatic mercapto compound, a heterocyclic seleno compound and an aromatic seleno compound when the thioether or selenoether bond is split off.