Corby, what you cover is Knights and lesser honours as to the Forfeiture Committee, the PM then taking their recommendation to the Queen - as in Fred the Shed and where the said person would be handled.
Lordships are much tougher to see through - The Crown, as fount of honour, may determine all petitions claiming peerages. The Sovereign upon the Attorney-General's advice can grant the claim or, in contentious matters, send it to the House of Lords, who in turn send it to the Select Committee for Privileges. (The House of Lords appoints 16 peers – including the Chairman of Committees – to the Committee.) Next, the sovereign makes a final decision based upon the Committee for Privileges' recommendation.