If by Ottawa you mean politicans, brucie, I won't disagree, but.. Be fair. You can't check out mothballed equipment before the necessary money is spent on bringing it up to operational status. Neither can you expect someone to spend the millions that are always necessary to bring mothballed equipment up to operational standards, without the committment to purchase being in place.

I would hope that the procurement process consisted of {Canada} "Yep, that looks good, but we need A-C & J through Q sorted before we pay you the money"; {UK} "OK, we've done A-C & J-Q, here's the boat, where's the money?". How the purchase was evaluated I do not know, & that is the province of the civil servants & the politicians.

All I know is that Canada accepted delivery & put their own crew on the sub. Who is to blame (if anyone) for the 'accident', I don't know. How thorough the procurement process was, how thorough the checking process was, I have no idea.

If a genuinely independent evalution ever happens, I suspect the findings will be that the UK wasn't entirely honest about what they were selling, & that Canada knew, but weren't admitting to, what they knew they were buying.

Whose fault is which??