A mobile apparatus mounted to a motor vehicle for detecting energized objects, comprising: at least one sensor probe (110x, 110y, 110z), mounted to the motor vehicle, configured to generate a first signal corresponding to an electric field detected by the at least one sensor probe (110x, 110y, 110z), and wherein the at least one sensor probe (110x, 110y, 110z) comprises at least one electrode (110x, 110y, 110z); a processor, coupled to the at least one sensor probe (110x, 110y, 110z), configured to digitize the first signal to form electric field data, to produce field strengths of each of the at least one sensor probes (110x, 110y, 110z), and to analyze the field strengths to identify a general location of the voltage anomaly in the electric field, wherein the electric field data is analyzed based on an expected frequency pertaining to the voltage anomaly to locate an energized object proximate a street; and an indicator, coupled to the processor, configured to alert a user to a presence of the voltage anomaly in the electric field proximate the street; characterized in that the mobile apparatus comprises at least one photonic sensor, mounted to the motor vehicle, configured to generate a second signal corresponding to an electric field detected by the at least one photonic sensor, for narrowing down the location of a voltage anomaly, wherein the voltage anomaly is a stray voltage anomaly; wherein the processor is further configured to digitize the second signal to form electric field data, to produce field strengths for the at least one photonic sensor, and to analyze the field strengths to identify a specific location of the voltage anomaly in the electric field. at least one sensor probe (110x, 110y, 110z), mounted to the motor vehicle, configured to generate a first signal corresponding to an electric field detected by the at least one sensor probe (110x, 110y, 110z), and wherein the at least one sensor probe (110x, 110y, 110z) comprises at least one electrode (110x, 110y, 110z); a processor, coupled to the at least one sensor probe (110x, 110y, 110z), configured to digitize the first signal to form electric field data, to produce field strengths of each of the at least one sensor probes (110x, 110y, 110z), and to analyze the field strengths to identify a general location of the voltage anomaly in the electric field, wherein the electric field data is analyzed based on an expected frequency pertaining to the voltage anomaly to locate an energized object proximate a street; and an indicator, coupled to the processor, configured to alert a user to a presence of the voltage anomaly in the electric field proximate the street; characterized in that the mobile apparatus comprises at least one photonic sensor, mounted to the motor vehicle, configured to generate a second signal corresponding to an electric field detected by the at least one photonic sensor, for narrowing down the location of a voltage anomaly, wherein the voltage anomaly is a stray voltage anomaly; wherein the processor is further configured to digitize the second signal to form electric field data, to produce field strengths for the at least one photonic sensor, and to analyze the field strengths to identify a specific location of the voltage anomaly in the electric field.