An unbelievable sequence of events led one New Mexico man from a routine traffic stop to an extremely invasive and unwanted medical procedure ordered by police.

Medical records, police reports and documents in a federal lawsuit obtained by KOB 4 tell the disturbing tale of what happened to David Eckert as he left a Wal-Mart parking lot on January 2 this year.

Eckert was pulled over by police for running a stop sign. Police said Eckert seemed to be clenching his buttocks when he stepped out of the vehicle and a drug sniffing dog hit on his driver's seat.

Read the original story to get all the details, but essentially police turned their suspicion of drugs into a series of medical tests that ended in a colonoscopy. At every turn, the driver protested the invasive medical procedures. He was released without being charged with a crime.

As if these humiliating searches weren't enough, the hospital involved sent Eckert a bill for the procedures. The hospital has threatened to take him to collections over the bill.

This isn't the first time police have been accused of going too far in their search for evidence. This summer, two high profile cases came to light involving women who had their anal and vaginal cavities searched on equally shaky legal grounds during traffic stops.