ON MAY 11 2020 AT 1410HRS, I WAS CONTACTED BY ********** WHO WAS REQUESTING SURVEILLANCE SERVICES IN REFERENCE AN UNUAUL NOISE AT HER APARTMENT COMPLEX.

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********** STATED SHE WAS A RESIDENT OF ********** APARTMENTS LOCATED AT ********** IN TEMPE, AZ AND FOR THE LAST YEAR, SHE WAS HAVING AN ISSUE WITH AN ODD NOISE AND NO ONE WAS HELPING HER RESOLVE THE ISSUE. SHE STATED SHE HAD ALREADY CONTACTED PROPERTY MANAGEMENT, LOCAL LAW ENFORCEMENT AND ON-SITE SECURITY NUMEROUS TIMES AND NO ONE WOULD HELP HER. I ASKED HER TO DESCRIBE THE NOISE AND SHE SAID IT WAS A FAINT HUM SOUND THAT WASN’T SUPER LOUD BUT WAS LOUD ENOUGH TO WAKE HER UP. SHE COULD ALWAYS HEAR IT IN HER BEDROOM AND BATHROOM BUT NOWHERE ELSE IN THE APARTMENT. THE NOISE ALMOST ALWAYS HAPPENS AT NIGHT AS SHE HAS ONLY HEARD IT ONCE DURING THE DAY. I ASKED HER HOW OFTEN SHE HEARS THE NOISE AND SHE SAID IT VARIES. SOMETIMES SHE CAN HEAR IT EVERY DAY FOR A WEEK AND OTHER TIMES SHE WILL GO A MONTH WITHOUT HEARING IT.

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ON MAY 12 2020 AT 1000HRS, I CONTACTED ********** SECURITY WHICH PROVIDES COURTESY PATROL SERVICES FOR XXXXX’S APARTMENT COMPLEX AND SPOKE WITH  ********** WHO IS THE PRIMARY GUARD FOR THIS PROPERTY. ********** STATED HE HAD SPOKEN WITH ********** ON 4 DIFFERENT OCCASSIONS (SEP 2 2019, SEP 8 2019, DEC 5 2019 AND FEB 20 2020) AND WAS ONLY ABLE TO HEAR THE NOISE ONCE WHICH WAS ON DEC 5 2019. HE SAID THE NOISE WAS SO FAINT HE COULD BARELY HEAR IT AND WAS UNABLE TO DETERMINE WHERE IT WAS COMING FROM OR WHAT IT ACTUALLY WAS.​

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ON MAY 12 2020 AT 1315HRS, I CONTACTED ********** WHO IS THE PROPERTY MANAGER FOR ********** APARTMENTS AND SHE TOLD ME SHE HAD BEEN CONTACTED BY ********** NUMEROUS TIMES IN REFERENCE THE NOISE. SHE SAID ON SEVERAL OCCASSIONS SHE HAS HAD MAINTENANCE FOR THE PROPERTY ATTEMPT TO LOCATE THE SOURCE OF THE NOISE BUT THEY HAVE NEVER BEEN ABLE TO. SHE SAID THEY EVEN HAD THE MAINTENANCE SUPERVISOR WORK SEVERAL NIGHT SHIFTS IN AN ATTEMPT TO HEAR AND LOCATE THE SOUND BUT WAS UNSUCCESSFUL. I ASKED HER IF ANY OTHER RESIDENTS HAD MADE COMPLAINTS ABOUT THE NOISE AND SHE SAID NO.

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ON MAY 12 2020 AT 1430HRS, I CONTACTED SEVERAL RESIDENTS IN THE AREA OF **********’S APARTMENT. RESIDENT LOCATED DIRECTLY ABOVE AND BELOW **********’S APARTMENT STATED THEY HAVE NEVER HEARD ANY UNUSUAL NOISE. NO CONTACT WAS MADE WITH THE RESIDENTS TO THE EAST AND WEST OF **********’S APARTMENT.

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A POLICE RECORDS REQUEST WAS COMPLETED AND IT SHOWED LOCAL LAW ENFORCEMENT HAD RESPONDED TO **********’S RESIDENCE ON FOUR SEPARATE OCCASSIONS WITH NOTHING UNUSUAL FOUND OR DOCUMENTED EACH TIME.

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ON THREE SEPARATE OCCASSIONS I CONDUCTED SURVEILLANCE OF THE PROPERTY IN AN ATTEMPT TO HEAR AND LOCATE THE SOURCE OF THE NOISE. ON MAY 15 2020 BETWEEN THE HOURS OF 2100 AND 0300 NO NOISE WAS HEARD. ON MAY 22 2020 I ARRIVED ON PROPERTY AT 2300HRS AND AT 0100HRS, I INITIALLY HEARD A FAINT SOUND WHICH WAS A DEEP HUM SOUND THAT LASTED FOR APPROXIMATELY 3 SECONDS. APPROXIMATELY 1 MINUTE LATER, I AGAIN HEARD THE HUM SOUND BUT THIS TIME IT WAS HEARD 4 TIMES, EACH TIME LASTING ABOUT 10 SECONDS WITH VARYING TIMES BETWEEN SOUNDS NO MORE THAN 5 SECONDS.

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THE FIRST TIME I HEARD THE NOISE I INITIALLY THOUGHT IT MAY HAVE BEEN SOMETHING RELATED TO A MUSICAL INSTRUMENT COMING FROM INSIDE ONE OF THE UNITS BUT EACH SOUND MADE AFTER THE FIRST, CAME FROM DIFFERENT LOCATIONS. ONE FROM NORTHEAST, ONE FROM THE NORTH, ONE AGAIN FROM THE NORTHEAST, ONE FROM WHAT SEEMED TO BE DIRECTLY BELOW ME AND ONE JUST TO THE SOUTH. EACH TIME I WAS UNABLE TO LOCATE ANY SPECIFIC LOCATION OR REASON. ON JUN 15 2020 NO NOISE WAS HEARD WHILE ON-SITE BETWEEN THE HOURS OF 0100HRS AND 0500HRS.

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​SEVERAL ENGINEERS WERE CONTACTED AND ASKED IF THEY HAD ANY SUGGESTIONS AS TO WHAT MAY BE CAUSING THIS UNUSUAL NOISE. SEVERAL STATED IT COULD BE DUE TO A MULTITUDE OF THINGS SUCH AS WIND, SETTLING OF THE BUILDING OR EXPANDING OF BUILDING DUE TO HEAT. ALL WERE ASKED TO COME OUT AND EVALUATE THE NOISE BUT ALL DECLINED.

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RESEARCH WAS CONDUCTED ON THE LAND ITSELF. PRIOR TO THE APARTMENT BEING BUILT, THE LAND WAS VACANT WITH NO PRIOR BUILDS OR DEVELOPMENT OF ANY KIND.

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DUE TO THE UNUSUAL FACTORS ASSOCIATED WITH THIS CASE, IT WAS PLACED IN THE 918 FILES.