I have come across some accounts for a small company filed with Companies House (full accounts with detailed P&L and even tax comps!). There is also an auditors report (with no Bannerman clause). The audit report is signed by a member of the Association of Certified Public Accountants (but not as a "registered auditor").
Are members of the ACPA entitled to be registered auditors?
If so, does the ACPA have a complaints procedure for registering complaints about the standard of their members' work (e.g. no comparatives, reference to FRRSE March 2000 for 310107 accounts, no interest shown in P&L (when there is in the detailed P&L), Net Current Assets including long term creditors, pennies in the accounts (yes really!), and, no accounting policy stated for lease charges (and there were some) - to name just a few of the mistakes).
Makes one wonder why we bother (and try very hard!) to keep up professional standards in the CCAB bodies!