To give home owners extra reassurance that you're not a member of the criminal fraternity, it's a good idea to commission a copy of your very own (nonexistent) police record. Having this available shows home owners that you're serious about presenting yourself as responsible and trustworthy and may put you ahead of the competition.
The process of commissioning a police check (known variously as a –criminal record check' in Canada and a –police certificate' in New Zealand) varies but is a fairly straightforward and inexpensive process. In the UK see the Criminal Records Bureau website at www.disclosure.gov.uk. In Australia visit the Australian Federal Police website at www.afp.gov.au. In Canada look at the Royal Canadian Mounted Police website at www.rcmp-grc.gc.ca. In Germany try the Federal Criminal Police office at www.bka.de. Your criminal record check needs to be current (preferably less than one year old).