Telepathic scan

Telepathic scans are performed when a telepath picks up thoughts from another person's mind.

Surface Scan
A surface scan reveals conscious thoughts and images located in the forefront of a subject's mind. Used in cases such as commercial telepathy or criminal investigations to determine if a subject is lying.

Deep Scan
Deep scans are extremely powerful mind-scans intended to break through mental blocks or dredge up well-hidden information. Deep scans can damage the subject, leading to seizures, heart attacks, strokes, permanent brain damage or even death, depending on the level of resistance. Extended deep scans can also affect the telepath running the scan-- the best Spriggan can only sustain a deep scan for up to 45 minutes, at which time they burst arteries, have strokes, or black out.

"Death-bed" Scan
Death-bed scans are performed when a Spriggan combs a dying person's mind for vital information up until the very moment of death. Such scans can be harmful to the telepath's mental health, with some even believing that one lost a piece of one's soul by being in contact with the person as they crossed the threshold. Almost no Spriggan, having performed this scan, would willingly do so a second time, with subsequent attempts thought to be very damaging to the psyche.

Resistance
There are, of course, methods to resisting these invasive psychic procedures. These range from singing songs, repeating nursery rhymes or doing math calculations, to surgical implantation, hypnodoctrination, and the installation of mental 'locks' by trained Spriggan, also known as 'psi-blockers'.