Customs law brings tourist boom to Canada (00/00/1947) see also NFB1940-FG-172: Shots of US and Canadian flags at Border Point on Niagara Bridge. HASs of customers entering stores. Interior shots of people shopping, buying. Sequence on cars at customs. Quick cuts to various US car licences. Shot of Customs inspectors examining contents of cars. Shot of cars drivinig by, Niagara Falls in background.