So I checked out the RCMP application form to purchase a firearm in Canada.
If you are currently married (or in a common law relationship), your conjugal partner has to sign his or her approval.
If you have lived in a conjugal relationship within the last 2 years with someone other than the person in the previous sentence, your prior conjugal partner has to sign her approval.
Personal History:
If you answer yes to any of the questions in this section, you must provide details on a separate page. If details are not provided, your application cannot be processed. A yes answer does not mean your application will be refused but it may lead to further examination.
During the past five (5) years, have you been charged, convicted or granted a discharge for an offence:
under the Criminal Code or the Youth Criminal Justice Act where violence was used, threatened or attempted;
(i)
involving the misuse, possession or storage of a firearm; or
(ii)
involving trafficking or importing drugs or controlled substances?
During the past five (5) years, have you been subject to a peace bond, protection order or an order under section 810 of the Criminal Code?
During the past five (5) years, have you or any member of your household been prohibited from possessing any firearm?
During the past five (5) years, have you threatened or attempted suicide, or have you suffered from or been diagnosed or treated by a medical practitioner for: depression; alcohol, drug or substance abuse;behavioural problems; or emotional problems?
During the past five (5) years, do you know if you have been reported to the police or social services for violence, threatened or attempted violence, or other conflict in your home or elsewhere?
During the past two (2) years, have you experienced a divorce, a separation, a breakdown of a significant relationship, job loss or bankruptcy?
On top of that you need two references (not your conjugal partner) who have known you for at least 3 years, and who will sign the application and attest that there is no reason of which they are aware that you should not be allowed to purchase a firearm.
Sounds like pretty reasonable basic criteria to me!