The Colin McGregor Justice Building was located in the city of St. Thomas. It contained the St. Thomas Police headquarters as well as the courts. The building was located at 30 St. Catharine Street.

The city council wanted to find an interested party to lease the building but there were no takers for the aging building. Besides the presence of asbestos inside the building, the ground contained contaminates that would require removal.

The approximate cost of the demolition is $400,000.

In September of 2014 the city council voted to build a new 30,000 square foot, one-storey building with a full basement, at a cost of $11.5 million.

Note the decal which reads “St. Thomas Police Force”. Today law enforcement prefers to use the term “service” rather than “force”.