Unfortunately there is a lo of rubbish and nonsense posted in various places about motoring law enforcement.
Magistrates have the power to impose a discretionary disqualification of any length for any offence which carries an endorsement. However, they are bound by law to follow the sentencing guidelines and must give their reasons if they depart from them. TThe guidelines for speeding are here:
https://sentencingcouncil.org.uk/guidelines/speeding-revised-2017/?source=7510As you can see, the guideline sentence for 50mpn in a 30mph limit is either a ban of 7-28 days or between four and six points and it covers speeds of 41-50mph. The overwhelming likelihood in your case is six points. This is borne out by experience of drivers who have reported back after posting on here and from a few posters who have court experience in various roles.
My recommendations are twofold:
1. Never,
ever, seek or accept legal advice from serving or former police officers
*.
2. If you need any advice of a similar nature in future, stick to this site. It is effectively moderated; trolling is not permitted and is quickly shut down; you will get opinions from people who have a good idea of what they are talking about (as opposed to nonsensical suggestions such as the latest one you have learned)..
Do let us know the outcome. This helps us advise others.
[
* - Mod edit - this applies to people whose
sole "qualification" for giving legal advice is being an ex-cop.]