Tuesday afternoon Halifax Police Chief Jao Chaves smiled as he accepted a check from Walmart manager Martin Disla to help fund a six-month trial for the Halifax motorcycle program. Chaves, who has been chief in Halifax for the past year, came from New Bedford where his department used motorcycles. Chaves has wanted to begin a motorcycle program in Halifax and got the go-ahead for a six-month trial from selectmen at an August meeting. Officer Michael W. Schleiff underwent 40 hours of intensive training, focusing on how to use the bike to help in various situations. Disla said that Walmart has helped in other aspects of its community outreach project with radar and protective vests for Halifax officers. With Walmart’s help, the motorcycle trial program will cost Halifax taxpayers nothing.