Test Fingers and Probes are used in most standards to check accessibility to moving parts or hazardous live parts. They comes in many forms, such as test fingers, test rods, test balls etc.
Used in test standard:
IEC 61032
IEC 60529
IEC 60950
IEC 60065
IEC 60335-series
IEC 62368-1
UL standards
and many more…