An Alabama man was arrested when a police investigation found more than 150 catalytic converters at his house.

Tuscaloosa police announced the Wednesday arrest of Gregory Bernard Hudson, 58, after a months-long investigation.

A search warrant at Hudson’s 21st Avenue East resident uncovered more than 150 catalytic converters and other exhaust parts stored throughout the property.

He was charged with a new law regarding how metal recyclers must document purchase of certain items, including catalytic converters, which are highly targeted by thieves due to the value of some of the materials inside them.

Hudson also faces a charge of receiving stolen property as well.

He posted a $315,000 bond and was released.