Missoula Police arrested 23 year-old Hunter Fisher after he allegedly attempted to substitute someone else’s urine for his scheduled urinalysis.

Police spokesman Travis Welsh said Fisher was picked up on Wednesday afternoon for violating terms of his release from a previous conviction.

“Wednesday afternoon at about 3:30 officers were called to assist when it was determined that a 22 year-old man who had been placed on conditions of release had come in to for a urinalysis and while doing so he attempted to pas along a sample that did not belong to him,” said Welsh. “He has been arrested and he is being held on a pretrial supervision violation, as well as tampering or fabricating physical evidence.”

Fisher was placed in jail on $100,000 bond for violating his pretrial supervision and another $10,000 for fabricating physical evidence.